WO2025236212A1 - Radio link monitoring method and apparatus, and device, chip and storage medium - Google Patents

Abstract

Provided in the embodiments of the present application is a radio link monitoring method, which is applied to a terminal device. The method comprises: receiving first configuration information and second configuration information from a network device, wherein the first configuration information is used for configuring time-frequency domain positions of one or more reference signals associated with a plurality of frequency resources, the second configuration information is used for configuring one or more determination conditions associated with the plurality of frequency resources, and the plurality of frequency resources are used for communication between a terminal device and the network device; and receiving, at the time-frequency domain positions, the one or more reference signals from the network device, wherein a reference signal and a determination condition associated with a first frequency resource are used for determining whether a radio link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the plurality of frequency resources. In the method, a terminal device can determine, on the basis of a reference signal and a determination condition associated with a certain frequency resource, whether an RLF has occurred on the frequency resource, thereby flexibly determining whether an RLF has occurred on a certain frequency resource.

Description

A wireless link monitoring method, apparatus, device, chip, and storage medium Technical Field

This application relates to the field of communication technology, specifically to a wireless link monitoring method, apparatus, device, chip, and storage medium.

Background Technology

Currently, radio link monitoring (RLM) aimed at detecting radio link failures (RLF) is performed on the primary cell (PCell) or the primary secondary cell (PSCell). If an RLF occurs in a PCell or PSCell, the cell group to which the PCell or PSCell belongs is considered to have experienced an RLF. This method creates a strong binding relationship between RLF detection results between cells within the same cell group, hindering flexible radio link monitoring.

Summary of the Invention

This application provides a wireless link monitoring method, apparatus, device, chip, and storage medium.

In a first aspect, embodiments of this application provide a wireless link monitoring method applied to a terminal device. The method includes: receiving first configuration information and second configuration information from a network device, wherein the first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources, and the second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources, wherein the multiple frequency resources are used for communication between the terminal device and the network device; and receiving the one or more reference signals from the network device at the time-frequency domain position, wherein the reference signals associated with the first frequency resources and the determination conditions are used to determine whether a wireless link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the multiple frequency resources.

Secondly, embodiments of this application provide a wireless link monitoring method applied to a network device. The method includes: sending first configuration information and second configuration information to a terminal device, wherein the first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources, and the second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources, wherein the multiple frequency resources are used for communication between the terminal device and the network device; and sending the one or more reference signals to the terminal device at the time-frequency domain position, wherein the reference signals associated with the first frequency resources and the determination conditions are used to determine whether a wireless link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the multiple frequency resources.

Thirdly, embodiments of this application provide a wireless link monitoring device, the device comprising: a first communication unit configured to receive first configuration information and second configuration information from a network device, the first configuration information being used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources, the second configuration information being used to configure one or more determination conditions associated with the multiple frequency resources, the multiple frequency resources being used for communication between the device and the network device; the first communication unit is further configured to receive the one or more reference signals from the network device at the time-frequency domain position, wherein the reference signals associated with the first frequency resources and the determination conditions are used to determine whether a wireless link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the multiple frequency resources.

Fourthly, embodiments of this application provide a wireless link monitoring device, the device comprising: a second communication unit configured to send first configuration information and second configuration information to a terminal device, the first configuration information being used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources, the second configuration information being used to configure one or more determination conditions associated with the multiple frequency resources, the multiple frequency resources being used for communication between the terminal device and the device; the second communication unit is further configured to send the one or more reference signals to the terminal device at the time-frequency domain position, wherein the reference signals associated with the first frequency resources and the determination conditions are used to determine whether a wireless link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the multiple frequency resources.

Fifthly, embodiments of this application provide a communication device, including: a memory for storing a computer program; a processor connected to the memory for calling and running the computer program from the memory to implement the method described in the first or second aspect; and a transceiver for receiving and sending information during the process of sending and receiving information with other devices.

Sixthly, embodiments of this application provide a chip. The chip includes: a processor for retrieving and running a computer program from a memory, causing a device on which the chip is installed to perform the method described in the first or second aspect; and a transceiver for receiving and sending information during the exchange of information with the device or the chip.

In a seventh aspect, embodiments of this application provide a computer-readable storage medium for storing a computer program that causes a computer to perform the methods described in the first or second aspect.

In this method, the terminal device can receive first configuration information and second configuration information from the network device, wherein the first configuration information is used for configuration. The method sets the time-frequency domain position of one or more reference signals associated with multiple frequency resources. Second configuration information is used to configure one or more determination conditions associated with these multiple frequency resources, which are used for communication between the terminal device and the network device. Further, the terminal device can receive the one or more reference signals from the network device at this time-frequency domain position. The reference signals associated with the first frequency resource and the determination conditions can be used to determine whether a first frequency resource has experienced an RLF (Remote Link Failure). The first frequency resource is included among the multiple frequency resources. According to the method of this application embodiment, for a specific frequency resource (such as the first frequency resource) among multiple frequency resources, the terminal device can determine whether the frequency resource has experienced an RLF based on the reference signals associated with that frequency resource and the determination conditions. This allows for flexible determination of whether a specific frequency resource has experienced an RLF, thereby achieving more flexible wireless link monitoring.

Attached Figure Description

The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

Figure 1 is a schematic diagram of an application scenario of an embodiment of this application;

Figure 2 is a flowchart illustrating a wireless link monitoring method provided in an embodiment of this application;

Figure 3 is a schematic diagram of a possible implementation flow of the wireless link monitoring method provided in an embodiment of this application;

Figure 4 is a schematic diagram of the structure of the wireless link monitoring device provided in an embodiment of this application.

Figure 5 is a schematic diagram of the structure of the wireless link monitoring device provided in the embodiment of this application;

Figure 6 is a schematic structural diagram of a communication device provided in an embodiment of this application;

Figure 7 is a schematic structural diagram of the chip according to an embodiment of this application;

Figure 8 is a schematic block diagram of a communication system provided in an embodiment of this application.

Detailed Implementation

The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.

As shown in Figure 1, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), 6G communication system, or future communication systems, etc.

In the communication system 100 shown in Figure 1, network device 120 may be an access network device that communicates with terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with terminal device 110 (e.g., UE) located within that coverage area.

Network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, a Next Generation Radio Access Network (NG RAN) device, a base station (gNB) in an NR system, a base station in a 6G system, a radio controller in a Cloud Radio Access Network (CRAN), or a relay station, access point, vehicle-mounted device, wearable device, hub, switch, bridge, router, or network device in a future evolved Public Land Mobile Network (PLMN), etc.

Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

For example, the terminal device 110 can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, IoT device, satellite handheld terminal, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network, terminal device in a 6G network, or terminal device in a future evolved network. wait.

Terminal device 110 can be used for device-to-device (D2D) communication.

The communication system 100 may further include a core network device 130 that communicates with the network device 120. This core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). In some embodiments, the core network device 130 may also be an Evolved Packet Core (EPC) device for an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions of both SMF and PGW-C. During network evolution, the aforementioned core network equipment may also be called by other names, or new network entities may be formed by dividing the functions of the core network. This application does not impose any restrictions on this.

The various functional units in the communication system 100 can also communicate with each other through a next-generation (NG) interface.

For example, terminal devices establish air interface connections with access network devices through the NR interface for transmitting user plane data and control plane signaling; terminal devices can establish control plane signaling connections with the AMF through NG interface 1 (N1); access network devices, such as next-generation radio access base stations (gNB), can establish user plane data connections with the UPF through NG interface 3 (N3); access network devices can establish control plane signaling connections with the AMF through NG interface 2 (N2); the UPF can establish control plane signaling connections with the SMF through NG interface 4 (N4); the UPF can interact with the data network for user plane data through NG interface 6 (N6); the AMF can establish control plane signaling connections with the SMF through NG interface 11 (N11); and the SMF can establish control plane signaling connections with the PCF through NG interface 7 (N7).

Figure 1 exemplarily illustrates a network device, a core network device, and two terminal devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

It should be noted that Figure 1 is merely an example illustrating the system to which this application applies. Of course, the method shown in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably in this document. The term "and/or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and/or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship. It should also be understood that "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a related relationship. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B. It should also be understood that "correspondence" mentioned in the embodiments of this application can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

1. Radio Link Monitoring (RLM) Reference Signal

RLM is the process by which a UE monitors the downlink radio link quality of the primary cell during RRC connected state (RRC_CONNECTED).

In NR, the reference signal (RLM-RS) used for RLM is configured via the higher-layer signaling RadioLinkMonitoringRS. There are two types of configurable RLM-RS: Channel State Information Reference Signal (CSI-RS) and Synchronization Signal Block (SSB). An RLM-RS configuration includes either a resource index for a CSI-RS or an index for an SSB. The network can configure multiple RLM-RS for a UE on each Band Width Part (BWP). The maximum number of configurable RLM-RS depends on the frequency range: 2 below 3 GHz; 4 between 3 GHz and 6 GHz; and 8 above 6 GHz. This limitation is due to the fact that higher frequency bands require more beams for the UE to monitor, and also to the limitations of the UE's capabilities in the current implementation. The RLM-RS measurements are used to evaluate the block error rate (BLER) of the hypothetical Physical Downlink Control Channel (PDCCH). In the configured RLM-RS, the UE assumes that the RLM-RS and the hypothetical PDCCH being evaluated have the same antenna port.

For SSBs, the network configures one or more SSB indices as RLM-RS for the UE. Due to multi-beam transmission in NR, the network... When configuring RLM-RS, multiple SSBs need to be configured as RLM-RS according to the beam serving the UE over a period of time. These SSBs are used to measure the signal quality of the SSBs and determine the synchronization/out-of-synchronization (IS/OOS) status.

For CSI-RS, because its resources are UE-specific configurations, the network can more flexibly configure RLM-RS resources for a specific UE. The network can also configure one or more CSI-RS resource indices as RLM-RS for a UE, and it also supports channel quality measurement for multi-beam transmission. Furthermore, compared to SSB, the configuration of CSI-RS resources can better match the PDCCH evaluated by RLM in both the spatial and frequency domains. The configuration of CSI-RS resources for RLM has certain limitations, including a cdm-type of "noCDM", a resource density of only 1 or 3, and a single antenna port.

In one possible scenario, the UE is not configured with RadioLinkMonitoringRS, but it is configured with Transmission Configuration Indicator (TCI) states for PDCCH reception. These TCI states contain one or more CSI-RS. In this case: if the active TCI state for PDCCH reception contains only one CSI-RS, the UE uses that CSI-RS as the RLM-RS. If the active TCI state for PDCCH reception contains two CSI-RS, the UE uses the CSI-RS whose Quasi Co-Location (QCL) information is configured as QCL-Type D as the RLM-RS. The UE does not expect both CSI-RS to have their QCL relationship configured as QCL-Type D; the UE does not use CSI-RS configured as aperiodic or semi-persistent as RLM-RS.

When a UE's serving cell is configured with multiple downlink BWPs, the UE only uses the RLM-RS configured on the active BWP to perform RLM measurements; or when no RLM-RS is configured on the active BWP, the UE uses the CSI-RS corresponding to the active TCI state of the control resource set (CORESET) used for PDCCH reception on the active BWP as the RLM-RS for RLM measurements, following the method described above.

2. RLM process

After configuring RLM-RS, the UE measures the RLM-RS and compares the measurement results with the IS/OOS threshold to obtain the IS/OOS status of the radio link. The UE periodically reports the IS/OOS status assessment results to higher layers. If the measurement result of any of the configured RLM-RS is higher than the IS threshold, the physical layer reports the IS status to higher layers; if the measurement results of all configured RLM-RS are lower than the OOS threshold, the physical layer reports the OOS status to higher layers. It can be seen that the reporting of the IS/OOS status is not based on the number of beams within the cell, i.e., the number of configured RLM-RS.

In non-DRX mode, the IS/OOS status reporting period is the maximum value between the shortest period of all configured RLM-RS resources and 10ms. In DRX mode, the IS/OOS status reporting period is the maximum value between the shortest period of all configured RLM-RS resources and the DRX period.

Similar to LTE, the IS/OOS thresholds in NR's RLM are also determined based on the hypothetical PDCCH BLER. The difference is that NR supports two sets of hypothetical PDCCH BLERs. The first set of thresholds is consistent with LTE: the IS threshold corresponds to a hypothetical PDCCH BLER of 2%, and the OOS threshold corresponds to a hypothetical PDCCH BLER of 10%. The purpose of introducing the other set of thresholds is to provide a higher hypothetical PDCCH BLER, which helps maintain the wireless link connection even in locations with poor wireless signal, avoiding connection failures caused by wireless link failures, thus contributing to the continuity of services such as VoIP. Which set of hypothetical PDCCH BLERs is used is configured by the network through the signaling `rlmInSyncOutOfSyncThreshold`. The signal-to-interference-plus-noise ratio (SINR) value corresponding to the BLER threshold of IS/OOS is not directly defined in the NR standard. Each manufacturer determines its own IS/OOS threshold for the UE based on the hypothetical PDCCH BLER and the performance of the UE's receiver.

3. RLM related configuration

The configuration related to the RLM RS is configured by radioLinkMonitoringConfig, which is carried in the downlink BWP configuration. That is, the configuration granularity is per-DL BWP, or per-DL BWP. This configuration includes the configuration of the reference signal, the type of the reference signal, and the purpose of the RLM. The purpose of the RLM may include Radio Link Failure (RLF) detection and Beam Failure (BF) detection. This application primarily focuses on RLM for the purpose of RLF detection.

The RLF detection conditions are configured by rlf-TimersAndConstants and rlmInSyncOutOfSyncThreshold, which are configured in SpCellconfig. In other words, the configuration granularity is per-SpCell.

4. Bandwidth Part (BWP)

The core concept of BWP (Bandwidth-based Windowing) is to define an access bandwidth smaller than both the cell system bandwidth and the terminal's bandwidth capability. All terminal transmit and receive operations can be performed within this smaller bandwidth, thereby enabling more flexible, efficient, and power-efficient terminal operations in the high-bandwidth 5G system. LTE's maximum single-carrier system bandwidth is 20MHz, and the terminal's single-carrier bandwidth capability is also 20MHz, so there is no situation where the terminal's capability is less than the cell system bandwidth. However, in 5G NR systems, the maximum carrier bandwidth will be significantly increased (e.g., 400MHz), while the increase in terminal bandwidth capability is significantly less than that on the network side (e.g., 100MHz). Furthermore, the terminal does not always need to operate at its maximum bandwidth capability. To save power and achieve more efficient frequency domain operations, the terminal can operate within a smaller bandwidth (i.e., BWP).

A BWP is a carrier-specific concept, and the configuration and activation/deactivation of the carrier are designed separately from those of the BWP. Carrier activation still uses the traditional method: one BWP can be activated within each active carrier; that is, the carrier must be activated first before the BWP within that carrier can be activated. If a carrier is deactivated, the active BWP within that carrier is also deactivated simultaneously.

BWP features include:

1) gNB can be semi-statically configured to one or more BWPs for UE, which are divided into uplink BWP and downlink BWP.

2) The BWP bandwidth is equal to or less than the terminal's RF bandwidth capability, but greater than the bandwidth of the SS/PBCH block (synchronization signal block, which includes SS (synchronization signal) and PBCH (broadcast channel)).

3) Each BWP contains at least one CORESET.

4) BWP may or may not contain SS/PBCH blocks.

5) A BWP consists of a certain number of Physical Resource Blocks (PRBs) and is bound to a parameter set (including a subcarrier spacing and a cyclic prefix (CP)). The configuration parameters of a BWP include bandwidth (such as the number of PRBs), frequency domain location (such as the center frequency), and parameter set (including subcarrier spacing and CP).

6) At any given time, a terminal can only have one active BWP. Further research is needed on the case where multiple BWPs are active simultaneously.

7) The terminal only operates within the active BWP and does not transmit or receive signals in the frequency domain outside the active BWP.

8) The Physical Downlink Shared Channel (PDSCH) and PDCCH are transmitted in the active downlink BWP, while the Physical Uplink Shared Channel (PUSCH) and Physical Uplink Control Channel (PUCCH) are transmitted in the active uplink BWP.

5. RLF recovery process

To mitigate service interruptions caused by Recurrent Leaks (RLFs), Release 16 introduced a fast recovery feature for the Master Cell Group (MCG). When an RLF occurs in an MCG (its primary cell, PCell), if the Secondary Cell Group (SCG) is available, an indication is sent to the network via the SCG link, triggering the network to quickly restore the MCG link; otherwise, connection reconstruction is triggered. Correspondingly, when an RLF occurs in an SCG, a message regarding the RLF is also reported via the MCG.

The above provides a brief explanation of the relevant technologies/terms involved in this application, which will not be repeated in the following embodiments.

Currently, RLM for RLF detection is executed on PCell or PSCell, and the conditions related to RLF determination are also configured in PCell and PSCell. If an RLF occurs in Pcell or PSCell, it is assumed that an RLF has occurred in the cell group to which Pcell or PSCell belongs. This method results in a strong binding relationship between RLF detection results between cells in the same cell group, making it difficult to flexibly monitor radio links.

In view of this, this application provides a wireless link monitoring method, apparatus, device, chip, and storage medium. In this method, a terminal device can receive first configuration information and second configuration information from a network device. The first configuration information is used to configure the time-frequency domain location of one or more reference signals associated with multiple frequency resources, and the second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the network device. Further, the terminal device can receive the one or more reference signals from the network device at the time-frequency domain location, wherein the reference signals associated with the first frequency resource and the determination conditions can be used to determine whether a first frequency resource has experienced an RLF (Remote Link Fault), and the first frequency resource is included in the multiple frequency resources.

According to the method of the embodiments of this application, for a certain frequency resource (such as the first frequency resource) among multiple frequency resources, the terminal device can determine whether the frequency resource has experienced an RLF based on the reference signal and judgment conditions associated with the frequency resource, thereby flexibly determining whether a certain frequency resource has experienced an RLF, and thus realizing more flexible wireless link monitoring.

To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

Figure 2 is a flowchart illustrating the wireless link monitoring method provided in an embodiment of this application. As shown in Figure 2, the method may include the following steps:

S201, the terminal device receives first configuration information and second configuration information from the network device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources. The second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the network device.

In this embodiment, the network device can send first configuration information and second configuration information to the terminal device, and correspondingly, the terminal device can receive the first configuration information and second configuration information from the network device.

The first configuration information can be used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources, and the second configuration information can be used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the network device.

In the first possible scenario (denoted as scenario #1), the reference signals associated with different frequency resources are different among these multiple frequency resources.

For example, in these multiple frequency resources, each frequency resource can be associated with one or more reference signals. As one implementation, the number of reference signals associated with a frequency resource can be related to one or more of the following: the capabilities of the terminal device, the frequency band corresponding to the frequency resource, and the sub-carrier space (SCS) configuration.

In scenario #1, the judgment conditions associated with different frequency resources are also different. For example, each frequency resource can be associated with one or more judgment conditions.

In the second possible scenario (denoted as scenario #2), the reference signals associated with different frequency resources are the same across these multiple frequency resources.

For example, all frequency resources among these multiple frequency resources can be associated with the same set of reference signals, which may include one or more reference signals. As one implementation, the number of reference signals included in this set may be related to the capabilities of the terminal device, the frequency bands corresponding to the multiple frequency resources, and one or more of the SCS configuration.

In scenario #2, the decision conditions associated with different frequency resources are different. For example, each frequency resource can be associated with one or more decision conditions.

In the third possible scenario (denoted as scenario #3), the reference signals associated with different frequency resources are the same.

For example, all frequency resources among these multiple frequency resources can be associated with the same set of reference signals, which may include one or more reference signals. As one implementation, the number of reference signals included in this set may be related to the capabilities of the terminal device, the frequency bands corresponding to the multiple frequency resources, and one or more of the SCS configuration.

In scenario #3, different frequency resources are associated with the same decision criteria across multiple frequency resources. For example, all frequency resources within these multiple frequency resources can be associated with one or more of the same decision criteria.

In some embodiments, for scenarios #2 and #3, the multiple frequency resources may belong to the same frequency resource group, for example, referred to as the first frequency resource group.

In some embodiments, for scenarios #1, #2, and #3, the first configuration information can also be used to configure the index and/or type of one or more reference signals associated with the plurality of frequency resources.

S202, the terminal device receives one or more reference signals (i.e., one or more reference signals associated with the plurality of frequency resources) from the network device at the time-frequency domain location, wherein the reference signal associated with the first frequency resource and the determination condition are used to determine whether the first frequency resource has experienced an RLF, and the first frequency resource is included in the plurality of frequency resources.

In this step, the network device can send one or more reference signals associated with the multiple frequency resources to the terminal device at the time-frequency domain location configured in the first configuration information. Correspondingly, the terminal device can receive one or more reference signals associated with the multiple frequency resources at the same time-frequency domain location. Furthermore, for the first frequency resource among the multiple frequency resources, the terminal device can determine whether the first frequency resource has experienced an RLF based on the reference signal associated with the first frequency resource and the determination conditions. In this way, it is possible to flexibly determine whether a frequency resource has experienced an RLF, thereby achieving more flexible wireless link monitoring.

The following describes solutions applicable to scenarios #1 and #2.

In some embodiments, for scenarios #1 and #2, the reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the first frequency resource association includes a first determination condition, which may include a first threshold, a second threshold, and a first duration.

The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the first frequency resource; the second threshold and the number of times the terminal device has lost synchronization on the first frequency resource within the first time period are used to determine whether the first frequency resource has experienced RLF.

For example, the terminal device can measure a first reference signal. If the measurement result is less than or equal to a third threshold, the terminal device is considered to have lost synchronization on the first frequency resource. The third threshold can be determined based on the first threshold. The first threshold may represent, for example, the maximum tolerable error rate for data transmission, and the third threshold may represent the signal strength determined based on the first threshold. When the measurement result is less than or equal to this signal strength, the error rate of data transmission can be considered high, thus indicating a loss of synchronization. Based on the measurement results obtained from multiple measurements of the first reference signal, a set of judgment results can be obtained. This set of judgment results includes a judgment result stating "the terminal device has lost synchronization on the first frequency resource," and/or a judgment result stating "the terminal device has not lost synchronization on the first frequency resource." Further, within a first time period, if there are N consecutive judgment results in this set stating "the terminal device has lost synchronization on the first frequency resource," and N is greater than or equal to a second threshold, then it can be determined that an RLF (Restricted Step Failure) has occurred on the first frequency resource.

In some embodiments, the scheme applicable to the first frequency resource can be applied to each of the plurality of frequency resources. That is, for each of the plurality of frequency resources, the terminal device can determine whether each frequency resource has experienced an RLF based on the reference signal and determination conditions associated with each frequency resource, thereby flexibly determining whether each frequency resource has experienced an RLF, and thus realizing more flexible wireless link monitoring.

It is understandable that, since different frequency resources may have different characteristics (e.g., different frequency resources have different bandwidths, different data transmission characteristics, etc.), the requirements for determining whether an RLF has occurred may also be different for different frequency resources. For example, different frequency resources may have different requirements for the first threshold and/or the second threshold. Therefore, configuring corresponding determination conditions for different frequency resources can more flexibly adapt to the different frequency resources' requirements for determining whether an RLF has occurred.

Furthermore, in scenario #2, different frequency resources can be associated with the same reference signal. Therefore, the terminal device can determine whether each frequency resource has experienced an RLF by monitoring this same reference signal, without needing to monitor the corresponding reference signal for each frequency resource separately, thus saving overhead. For example, if the multiple frequency resources include frequency resource #1 and frequency resource #2, then since frequency resource #1 and frequency resource #2 are associated with the same reference signal, the terminal device can determine whether an RLF has occurred based on this reference signal and the determination criteria associated with frequency resource #1. Determine whether frequency resource #1 has experienced an RLF, and determine whether frequency resource #2 has experienced an RLF based on the reference signal and the judgment conditions associated with frequency resource #2.

In some embodiments, the first determination condition is related to one or more of the following 11) to 15):

11) The frequency range corresponding to the first frequency resource.

For example, since high frequencies are typically used to provide high-speed, stable data transmission, when the frequency range corresponding to the first frequency resource is high frequency, the first threshold and/or the second threshold in the first determination condition can be relatively small (when the first duration is fixed). In this way, when the signal quality on the first frequency resource is poor, the first frequency resource is more likely to be determined to have an RLF, so that the network device can reconfigure the available frequency resources for the terminal device to ensure communication quality.

For example, since low frequencies are typically used to ensure signal coverage, when the frequency range corresponding to the first frequency resource is low frequency, the first threshold and/or the second threshold in the first determination condition can be relatively large (when the first duration is fixed). In this way, the first frequency resource is less likely to be determined as experiencing RLF, which helps the terminal device to continuously receive signals on the first frequency resource.

12) The number of reference signals associated with the first frequency resource.

For example, the more reference signals associated with the first frequency resource, the smaller the first threshold and/or second threshold can be configured (assuming a fixed first duration).

13) Characteristics of service data transmitted on the first frequency resource.

The characteristics of the service data transmitted on the first frequency resource can also be understood as the characteristics of the services supported by the first frequency resource.

For example, if the service data transmitted on the first frequency resource is high priority and/or has high reliability requirements, the first threshold and/or the second threshold in the first determination condition can be relatively small (when the first duration is fixed). In this way, when the signal quality on the first frequency resource is poor, the first frequency resource is more likely to be determined to have an RLF, so that the network device can configure the terminal device to reconfigure the available frequency resources to ensure the reliability of data transmission.

14) The number of frequency resources currently available.

For example, if the number of available frequency resources is small, the first threshold and/or the second threshold in the first determination condition can be relatively large (when the first duration is fixed). In this way, the first frequency resource is less likely to be determined to have experienced an RLF, which helps to avoid the lack of other available frequency resources after the first frequency resource is determined to have experienced an RLF.

15) The access technology used by the terminal equipment on the first frequency resource.

Access technologies may include, for example, Terrestrial Networks (TN) access technology, Non-Terrestrial Networks (NTN) access technology, Sidelink (SL) access technology, NR access technology, and 6G access technology.

For example, since the communication stability of NTN access technology is relatively poor, if the terminal device uses NTN access technology on the first frequency resource, the first threshold and/or the second threshold in the first determination condition can be relatively large (when the first duration is fixed). In this way, the first frequency resource is less likely to be determined to have an RLF, which is beneficial to enable the terminal device to continuously receive signals.

In some embodiments, the number of first determination conditions can be one or more. When there are multiple first determination conditions, the parameters (such as a first threshold, a second threshold, and a first duration) included in different first determination conditions can be different or at least partially the same.

In some embodiments, when there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether a first frequency resource has experienced an RLF, wherein the second determination condition is indicated by first information sent by the network device, and/or determined based on the second information sent by the network device.

In other words, when multiple first determination conditions are configured, the terminal device can determine a second determination condition from among the multiple first determination conditions based on first information and/or second information, as the determination condition for determining whether an RLF has occurred on the first frequency resource. Alternatively, when multiple first determination conditions are configured, the network device can indicate a first determination condition to the terminal device through first information and/or second information, as the determination condition (i.e., the second determination condition) for determining whether an RLF has occurred on the first frequency resource.

In some embodiments, the first information may include an identifier of a second determination condition, thereby enabling the terminal device to determine, based on the identifier of the second determination condition, that the determination condition used to determine whether a first frequency resource has experienced an RLF is the second determination condition. Exemplarily, the first information may be carried, for example, through a Media Access Control (MAC) control element (MAC CE) or downlink physical layer signals.

In some embodiments, the second information may include one or more of the following 21) to 26):

21) The frequency range corresponding to each first judgment condition.

22) The number or range of reference signals corresponding to each first determination condition.

23) Characteristics of the business data corresponding to each first judgment condition.

24) The number or range of available frequency resources corresponding to each first judgment condition.

25) The access technology corresponding to each of the first judgment conditions.

26) Identification of the second judgment condition.

In some embodiments, the terminal device may know the determination condition for determining whether a first frequency resource has experienced an RLF based on the identifier of the second determination condition, or the terminal device may determine the second determination condition based on one or more of the above information 21) to 25).

In some embodiments, the second determination condition satisfies one or more of the following:

The frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second judgment condition.

The number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition.

The characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition.

The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second judgment condition, or falls within the range of the number of available frequency resources corresponding to the second judgment condition;

The access technology used by the terminal device on the first frequency resource is consistent with the access technology corresponding to the second determination condition.

In some embodiments, the terminal device may determine the second determination condition based on the frequency range corresponding to the first frequency resource, the number of reference signals associated with the first frequency resource, the characteristics of the service data transmitted on the first frequency resource, the number of currently available frequency resources, one or more of the access technologies used by the terminal device on the first frequency resource, and the content of the second information.

For ease of understanding, the following explanation will take the example of a terminal device determining the second judgment condition based on the frequency range corresponding to the first frequency resource and the content of the second information.

As an example, the terminal device can determine the second determination condition based on the frequency range corresponding to the first frequency resource and the frequency range corresponding to each of the first determination conditions contained in the second information. For example, assuming that the frequency range corresponding to the first determination condition #1 is frequency range #1 and the frequency range corresponding to the first determination condition #2 is frequency range #2, then if the frequency range corresponding to the first frequency resource is included within frequency range #1, the first determination condition #1 can be determined as the second determination condition (that is, the determination condition used to determine whether the first frequency resource has experienced an RLF); if the frequency range corresponding to the first frequency resource is included within frequency range #2, the first determination condition #2 can be determined as the second determination condition.

According to the method of this embodiment, when multiple first determination conditions are configured, the terminal device can use a second determination condition among the multiple first determination conditions to determine whether a first frequency resource has experienced an RLF. The second determination condition is related to the characteristics of the first frequency resource (e.g., the frequency range corresponding to the first frequency resource, the number of reference signals associated with the first frequency resource, the characteristics of the service data transmitted on the first frequency resource, and one or more of the access technologies used by the terminal device on the first frequency resource) and/or the number of currently available frequency resources. In this way, the second determination condition can be better adapted to the characteristics of the first frequency resource and/or the current actual scenario.

In some embodiments, the method may further include: when a first frequency resource experiences an RLF, the terminal device sends third information to the network device via a second frequency resource; correspondingly, the network device may receive the third information from the terminal device, the third information being used to indicate that the first frequency resource has experienced an RLF; wherein, the second frequency resource has not experienced an RLF.

In other words, if an RLF (Restricted Frequency Failure) occurs on the first frequency resource, the terminal device can send third information to the network device through a frequency resource that has not experienced an RLF (such as the second frequency resource) to indicate that an RLF has occurred on the first frequency resource. The second frequency resource can be one of the multiple frequency resources that has not experienced an RLF, or it can be any frequency resource other than the multiple frequency resources that has not experienced an RLF.

In some embodiments, the third information may be carried via Radio Resource Control (RRC) signaling or MAC CE, which may be used to indicate that an RLF has occurred on one or more frequency resources (including the first frequency resource).

As an example, the third information can be carried via RRC signaling, which may carry the identifier/index of one or more frequency resources to indicate that an RLF has occurred on the one or more frequency resources.

In another example, third information can be carried through a MAC CE, which can indicate, for example, that one or more frequency resources have experienced an RLF (Recurrent Frequency Failure). For instance, the MAC CE includes bits corresponding to multiple frequency resources; if a bit corresponding to a frequency resource is a first value, it indicates that the frequency resource has experienced an RLF; if a bit corresponding to a frequency resource is not a first value, it indicates that the frequency resource has not experienced an RLF.

In some embodiments, the method may further include: if a first frequency resource experiences an RLF (Recurrent Frequency Failure), and no available frequency resource exists (e.g., all frequency resources experience RLF), the terminal device may send fourth information to the network device, and correspondingly, the network device may receive the fourth information from the terminal device, the fourth information being used to trigger the re-establishment of the RRC (Recurrent Rate Control) connection between the terminal device and the network device. Alternatively, if a first frequency resource experiences an RLF and no available frequency resource exists, the re-establishment of the RRC connection between the terminal device and the network device may be triggered.

According to the method of this embodiment, since the judgment conditions associated with different frequency resources are different, RLF detection can be performed relatively independently for different frequency resources. There is no binding relationship between the RLF detection results of each frequency resource. For example, when a certain frequency resource is determined to have an RLF, it will not cause other frequency resources to be determined to have an RLF, thus reducing the probability of triggering RRC connection reconstruction and causing service interruption.

In some embodiments, the terminal device may determine that the first frequency resource is based on a reference signal associated with the first frequency resource and a determination condition. Whether an RLF occurs, the first frequency resource can be: a frequency resource indicated (configured) by the network device; or a frequency resource currently used by the terminal device; or a frequency resource used to transmit specific service data (e.g., a frequency resource used to transmit the highest priority service data); or a frequency resource used by default by the terminal device; or a frequency resource initially used by the terminal device; or a frequency resource containing a reference signal (e.g., a frequency resource containing a first reference signal).

The following section introduces a solution applicable to scenario #3.

In scenario #3, the reference signals and decision conditions associated with these multiple frequency resources can be used to determine whether an RLF (Recurrent Leakage) has occurred on these frequency resources. Since different frequency resources can be associated with the same reference signals and decision conditions, this helps to save overhead.

In some embodiments, for scenario #3, the reference signal associated with the plurality of frequency resources includes a first reference signal, and the determination condition for the association of the plurality of frequency resources includes a first determination condition, which may include a first threshold, a second threshold, and a first duration.

The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the multiple frequency resources; the second threshold and the number of times the terminal device has lost synchronization on the multiple frequency resources in a first time period are used to determine whether the multiple frequency resources have experienced RLF.

For example, the terminal device can measure a first reference signal. If the measurement result is less than or equal to a third threshold, the terminal device is considered to have lost synchronization on the multiple frequency resources. The third threshold can be determined based on the first threshold. The first threshold may represent, for example, the maximum tolerable error rate for data transmission, and the third threshold may represent the signal strength determined based on the first threshold. When the measurement result is less than or equal to this signal strength, the data transmission error rate is considered high, thus indicating a loss of synchronization. Based on the measurement results obtained from multiple measurements of the first reference signal, a set of judgment results can be obtained. This set of judgment results includes a judgment result stating that "the terminal device has lost synchronization on the multiple frequency resources," and/or a judgment result stating that "the terminal device has not lost synchronization on the multiple frequency resources." Further, within a first time period, if there are N consecutive judgment results in this set stating that "the terminal device has lost synchronization on the multiple frequency resources," and N is greater than or equal to a second threshold, then it can be determined that an RLF (Restricted Link Fault) has occurred on the multiple frequency resources.

In some embodiments, the first determination condition is related to one or more of the following 31) to 35):

31) The frequency range corresponding to at least one of the multiple frequency resources.

As an example, the first determination condition may be related to the frequency range corresponding to one of the multiple frequency resources. For instance, if the frequency range corresponding to the frequency resource is high-frequency, the first threshold and/or the second threshold in the first determination condition may be relatively small (when the first duration is fixed) to ensure communication quality; if the frequency range corresponding to the frequency resource is low-frequency, the first threshold and/or the second threshold in the first determination condition may be relatively large (when the first duration is fixed) to enable the terminal device to continuously receive signals on the frequency resource as much as possible.

In another example, the first determination condition may be related to the frequency range corresponding to two or more frequency resources among the plurality of frequencies. That is, the configuration of the first determination condition can comprehensively consider the frequency range corresponding to two or more frequency resources. For example, if the frequency range of most of the two or more frequency resources is high frequency, then the first threshold and/or the second threshold in the first determination condition may be relatively small (when the first duration is fixed).

32) The number of reference signals associated with the multiple frequency resources.

For example, the more reference signals associated with the multiple frequency resources, the smaller the first threshold and/or second threshold can be configured (assuming a fixed first duration).

33) Characteristics of the service data transmitted on at least one of the multiple frequency resources.

As an example, the first determination criterion may be related to the characteristics of the service data transmitted on one of the multiple frequency resources. For instance, if the service data transmitted on that frequency resource is high-priority and/or has high reliability requirements, the first threshold and/or the second threshold in the first determination criterion may be relatively small (given a fixed first duration) to ensure the reliability of data transmission.

In another example, the first determination condition may be related to the characteristics of the service data transmitted on two or more frequency resources among the plurality of frequencies. That is, the configuration of the first determination condition can comprehensively consider the characteristics of the service data transmitted on two or more frequency resources. For example, if the service data transmitted on most of the two or more frequency resources is high-priority and/or has high reliability requirements, then the first threshold and/or the second threshold in the first determination condition can be relatively small (when the first duration is fixed) to ensure the reliability of data transmission.

34) The number of frequency resources currently available.

For example, if the number of currently available frequency resources is small, the first threshold and/or the second threshold in the first determination condition can be relatively large (when the first duration is fixed). In this way, the multiple frequency resources are less likely to be determined to have experienced RLF, which helps to avoid the lack of other available frequency resources after the multiple frequency resources are determined to have experienced RLF.

35) The access technology (such as TN/NTN/SL/NR/6G, etc.) used by the terminal equipment on at least one of the multiple frequency resources.

As an example, the first determination criterion may be related to the access technology used on one of the multiple frequency resources. For instance, if the terminal device uses NTN access technology on that frequency resource, the first threshold and/or the second threshold in the first determination criterion may be relatively large (given a fixed first duration).

In another example, the first determination condition may be related to the access technology used on two or more frequency resources among the plurality of frequencies. That is, the configuration of the first determination condition can comprehensively consider the access technologies used on two or more frequency resources. For example, if the access technology used on most of the two or more frequency resources is NTN access technology, then the first threshold and/or the second threshold in the first determination condition may be relatively large (when the first duration is fixed).

In some embodiments, the number of first determination conditions is one or more. When there are multiple first determination conditions, the parameters (such as a first threshold, a second threshold, and a first duration) included in different first determination conditions may be different or at least partially the same.

In some embodiments, when there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the multiple frequency resources have experienced an RLF, wherein the second determination condition is indicated by first information sent by the network device, and/or determined based on the second information sent by the network device.

In other words, when multiple first determination conditions are configured, the terminal device can determine a second determination condition from among the multiple first determination conditions based on first information and/or second information, as the determination condition for determining whether the multiple frequency resources have experienced an RLF. Alternatively, when multiple first determination conditions are configured, the network device can indicate a first determination condition to the terminal device through first information and/or second information, as the determination condition (i.e., the second determination condition) for determining whether the multiple frequency resources have experienced an RLF.

In some embodiments, the first information may include an identifier of a second determination condition, thereby allowing the terminal device to determine, based on the identifier of the second determination condition, whether the plurality of frequency resources have experienced an RLF (Restricted Frequency Failure). Exemplarily, the first information may be carried via a MAC CE (Machine Interface Certificate) or a downlink physical layer signal.

In some embodiments, the second information may include one or more of the following 41) to 46):

41) The frequency range corresponding to each first judgment condition.

42) The number or range of reference signals corresponding to each first determination condition.

43) Characteristics of the business data corresponding to each first judgment condition.

44) The number or range of available frequency resources corresponding to each first judgment condition.

45) The access technology corresponding to each of the first judgment conditions.

46) Identification of the second judgment condition.

In some embodiments, the terminal device may know the determination condition used to determine whether the plurality of frequency resources have experienced an RLF based on the identifier of the second determination condition, or the terminal device may determine the second determination condition based on one or more of the above information 41) to 45).

In some embodiments, the second determination condition satisfies one or more of the following:

The frequency range corresponding to at least one of the multiple frequency resources is included within the frequency range corresponding to the second determination condition.

The number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition;

The characteristics of the service data corresponding to the second determination condition include the characteristics of the service data transmitted on at least one of the multiple frequency resources.

The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second judgment condition, or falls within the range of the number of available frequency resources corresponding to the second judgment condition;

The access technology corresponding to the second determination condition includes the access technology used by the terminal device on at least one of the multiple frequency resources.

According to the method of this embodiment, the terminal device can determine the second determination condition based on one or more of the above 31) to 35) and the content of the second information.

For ease of understanding, the following explanation uses the example of a terminal device determining the second determination condition based on the frequency range corresponding to at least one of the multiple frequency resources and the content of the second information.

As an example, the terminal device can determine the second determination condition based on the frequency range corresponding to at least one of the multiple frequency resources and the frequency range corresponding to each of the first determination conditions contained in the second information. For example, assuming that the frequency range corresponding to the first determination condition #1 is frequency range #1 and the frequency range corresponding to the first determination condition #2 is frequency range #2, then if the frequency range corresponding to the at least one frequency resource is included within frequency range #1, the first determination condition #1 can be determined as the second determination condition (that is, the determination condition used to determine whether the multiple frequency resources have experienced RLF); if the frequency range corresponding to the at least one frequency resource is included within frequency range #2, the first determination condition #2 can be determined as the second determination condition.

According to the method of this embodiment, when multiple first determination conditions are configured, the terminal device can use a second determination condition among the multiple first determination conditions to determine whether the multiple first frequency resources have experienced RLF. The second determination condition is related to the characteristics of the multiple frequency resources (e.g., the frequency range corresponding to at least one of the multiple frequency resources, the number of reference signals associated with the multiple frequency resources, the characteristics of the service data transmitted on at least one of the multiple frequency resources, and one or more of the access technologies used by the terminal device on at least one of the multiple frequency resources) and/or the number of currently available frequency resources. In this way, the second determination condition can be better adapted to the characteristics of the multiple frequency resources and/or the current actual scenario.

In some embodiments, the method may further include: when the plurality of frequency resources experience an RLF, the terminal device sends third information to the network device through the second frequency resource, and the network device may receive the third information from the terminal device, the third information being used to indicate that the plurality of frequency resources have experienced an RLF; wherein, the second frequency resource has not experienced an RLF.

In some embodiments, the plurality of frequency resources belong to a first frequency resource group, and the second frequency resource belongs to a second frequency resource group. That is, when a frequency resource in the first frequency resource group experiences an RLF (Restricted Frequency Failure), a third message can be sent to the network device through a frequency resource in another frequency resource group that has not experienced an RLF (such as the second frequency resource group) to indicate that the plurality of frequency resources have experienced an RLF.

In some embodiments, third information may be carried via RRC signaling or MAC CE.

For example, when the third information is carried via RRC signaling, the RRC signaling may carry a 1-bit failure indication. In some scenarios, a terminal device may be configured with two frequency resource groups, denoted as frequency resource group #1 and frequency resource group #2. If the multiple frequency resources belong to frequency resource group #1, then when a Recurrent Frequency Failure (RLF) occurs on these multiple frequency resources, the terminal device can send the third information to the network device through the frequency resources in frequency resource group #2. In this way, the network device can determine that frequency resource group #2 has not experienced an RLF based on the frequency resources transmitting the third information, and thus determine that frequency resource group #1 has experienced an RLF, i.e., all of these multiple frequency resources have experienced an RLF.

In another example, when the third information is carried via RRC signaling, the RRC signaling may carry a 1-bit failure indication, as well as the identifiers/indexes corresponding to the multiple frequency resources. The identifiers/indexes corresponding to the multiple frequency resources can be the individual identifiers/indexes of each of the multiple frequency resources; or, when the multiple frequency resources belong to a frequency resource group, the identifiers/indexes corresponding to the multiple frequency resources can be the identifiers/indexes corresponding to the frequency resource group.

In another example, when the third information is carried via RRC signaling, the RRC signaling may carry the identifiers/indexes corresponding to the multiple frequency resources. Thus, the network device can determine that an RLF has occurred for the multiple frequency resources based on these identifiers/indexes. The identifiers/indexes corresponding to the multiple frequency resources can be the individual identifiers/indexes of each frequency resource; or, when the multiple frequency resources belong to a frequency resource group, the identifiers/indexes corresponding to the multiple frequency resources can be the identifiers/indexes of that frequency resource group.

In some embodiments, the method may further include: in the event of an RLF (Recurrent Frequency Failure) occurring on multiple frequency resources, if no available frequency resources exist (e.g., all frequency resources/frequency resource groups experience RLF), the terminal device may send fourth information to the network device, and correspondingly, the network device may receive the fourth information from the terminal device, the fourth information being used to trigger the re-establishment of the RRC (Recurrent Rate Control) connection between the terminal device and the network device. Alternatively, in the event of an RLF occurring on multiple frequency resources, if no available frequency resources exist, the re-establishment of the RRC connection between the terminal device and the network device may be triggered.

In some embodiments, the second frequency resource in scenarios #1, #2, and #3 can be one of the following 51) to 53):

51) Any frequency resource that has been configured on the terminal device that has not experienced an RLF.

52) Specific frequency resources among the frequency resources already configured in the terminal equipment.

This specific frequency resource can be, for example, a default frequency resource, an initial frequency resource, or a small frequency resource with low bandwidth.

53) Frequency resources configured in the terminal equipment that meet specific conditions for signal quality.

Frequency resources whose signal quality meets specific conditions can be, for example, the frequency resources with the best signal quality, or frequency resources with signal quality above a certain threshold.

In some embodiments, the plurality of frequency resources may be located within a continuous frequency band, or the network devices associated with the plurality of frequency resources may be co-located. Co-location of the network devices associated with the plurality of frequency resources can also be understood as the plurality of frequency resources being frequency resources supported by the co-located network devices, or as the plurality of frequency resources being multiple frequency resources configured on the co-located network devices.

It is understandable that if multiple frequency resources are located within a continuous frequency band, or if the network devices associated with these multiple frequency resources are co-located, it indicates that the signal quality on these multiple frequency resources is relatively similar. Therefore, if multiple frequency resources are located within a continuous frequency band, or if the network devices associated with these multiple frequency resources are co-located, the same reference signal can be configured for these multiple frequency resources. That is, different frequency resources can be associated with the same reference signal. For example, in scenarios #2 and #3, the multiple frequency resources may be located within a continuous frequency band, or the network devices associated with these multiple frequency resources may be co-located, so the same reference signal can be configured for these multiple frequency resources. In this way, the terminal device can determine whether each frequency resource has experienced RLF by monitoring the same reference signal, without needing to monitor the corresponding reference signal for each frequency resource separately, thereby saving overhead.

In some embodiments, the frequency resources mentioned above can be BWPs. That is, the terminal device can determine whether a BWP has experienced an RLF based on the reference signal associated with that BWP and the determination conditions, thereby flexibly determining whether a BWP has experienced an RLF and thus realizing more flexible wireless link monitoring.

The wireless link monitoring method provided in the embodiments of this application has been introduced above. To facilitate understanding of the embodiments of this application, the following uses BWP as a frequency resource as an example to introduce possible implementation schemes of the wireless link monitoring method applicable to the embodiments of this application.

Figure 3 is a schematic diagram of a possible implementation flow of the wireless link monitoring method provided in this application embodiment. As shown in Figure 3, the implementation flow may include the following steps:

S301, the network device sends configuration information related to RLM (RLF detection) to the terminal device.

S302, the terminal device performs RLM (RLF detection) based on the configuration information related to RLM.

S303, the terminal device sends an RLF report (RLF information) to the network device.

The following describes three possible implementation schemes applicable to S301 to S303 above, referred to as Scheme 1, Scheme 2 and Scheme 3 respectively.

Option 1

In Scheme 1, a corresponding Reference Signal (RS) configuration can be set for each BWP, and corresponding RLF determination conditions (hereinafter referred to as determination conditions) can also be set for each BWP. In other words, the configuration granularity of RS is per BWP, and the configuration granularity of RLF determination conditions is also per BWP. The terminal device can perform RLM (RLF detection) independently for each BWP. When an RLF is detected in a BWP, if there are other available BWPs (BWPs that have not experienced RLF), the terminal device can report the RLF information to the network device through the other available BWPs; if all BWPs experience RLF, the RRC connection reconstruction process can be triggered.

It should be noted that, in the embodiments of this application, the RS configuration configured for a certain BWP is the RS configuration associated with that BWP, and the RLF determination condition configured for a certain BWP is the RLF determination condition associated with that BWP.

In Scheme 1, the network device can send configuration information related to RLM (RLF detection) to the terminal device. This configuration information may include RS configuration (corresponding to the first configuration information in the aforementioned embodiments) and RLF determination condition configuration (corresponding to the second configuration information in the aforementioned embodiments).

In some embodiments, RS configuration is performed on a per-BWP basis, and each BWP can be configured with one or more RS configurations. For example, the number of RS configurations that can be configured for each BWP is related to the capabilities of the terminal device, the frequency band corresponding to the BWP, the SCS configuration, etc.

In some embodiments, RS configuration may include: the RS's identifier (index); the RS's type; and the RS's specific time-frequency domain location.

In some embodiments, the RLF decision condition configuration is configured separately for each BWP.

In some embodiments, the RLF decision condition configuration may include:

The timer value (timer) used to determine whether BWP has experienced RLF (corresponding to the first duration in the aforementioned embodiment) and the maximum number of consecutive step loss (corresponding to the second threshold in the aforementioned embodiment);

A tolerable error threshold (corresponding to the first threshold in the aforementioned embodiments) is used to determine whether the terminal device has lost synchronization on the BWP.

For example, for a specific RS associated with a BPW, the terminal device can measure that RS. If the measurement result is less than or equal to a third threshold, the terminal device is considered to have lost synchronization on that BPW. The third threshold can be a signal strength determined based on a tolerable error threshold. When the measurement result is less than or equal to this signal strength, the data transmission error rate is considered high, failing to meet the tolerable error threshold requirement, thus indicating a loss of synchronization. Based on the measurement results obtained from multiple measurements of the RS, a set of judgment results can be obtained. This set of judgment results includes a judgment result stating "the terminal device has lost synchronization on this BPW," and/or a judgment result stating "the terminal device has not lost synchronization on this BPW." Further, within the duration corresponding to the timer value, if N consecutive judgment results in this set state "the terminal device has lost synchronization on this BPW," and N is greater than or equal to the maximum consecutive loss of synchronization count, then the BPW is considered to have experienced a Regression-Range Function (RLF).

In some embodiments, one or more sets of RLF decision conditions can be configured for each BWP. For example, the multiple sets of RLF decision conditions configured for BWP#1 may include RLF decision condition #1 (one of the multiple sets of RLF decision conditions) and RLF decision condition #2 (another of the multiple sets of RLF decision conditions). The parameters in RLF decision condition #1 (such as timer value, maximum consecutive step loss count, and tolerable error threshold) may be different from or at least partially the same as the parameters in RLF decision condition #2.

In some embodiments, factors influencing the RLF determination criteria for a BWP association may include one or more of the following a) through e):

a) The frequency range corresponding to the BWP (high frequency or low frequency, etc.).

For example, high frequencies are typically used to provide high-speed data transmission, while low frequencies are typically used to ensure coverage. Therefore, for low frequencies, a larger maximum number of consecutive out-of-step counts (with a fixed timer value) and/or a higher tolerable error threshold can be configured.

b) The number of RSs associated with this BWP.

For example, the more RSs associated with the BWP, the smaller the maximum number of consecutive step losses can be configured (assuming a fixed timer value).

c) The characteristics of the service data transmitted on the BWP, or in other words, the characteristics of the services supported by the BWP.

For example, whether the business data is high priority and/or has high reliability requirements. If the business data is high priority and/or has high reliability requirements, a smaller maximum number of consecutive step losses (assuming the measurement timer is fixed) and/or a lower tolerable error threshold can be configured.

d) The number of BWPs currently available.

For example, if the number of available BWPs is small, a larger maximum number of consecutive step losses can be configured (assuming a fixed timer value), and/or a higher tolerable error threshold.

e) The access technology (such as TN/NTN/SL/NR/6G, etc.) used by the terminal device on the BWP.

For example, if the terminal device uses NTN as the access technology on the BWP, a larger maximum number of consecutive step losses (with a fixed timer value) and/or a higher tolerable error threshold can be configured.

In some embodiments, when multiple sets of RLF determination conditions are configured for a certain BWP, the network device can semi-statically and/or dynamically indicate the RLF determination conditions used (that is, the RLF determination conditions used to determine whether the BWP has experienced an RLF).

For example, a network device can semi-statically indicate (as in the second information indication described in the foregoing embodiments) the RLF determination conditions used. For instance, the network device can configure the correspondence between each set of RLF determination conditions and the aforementioned factors. For example, the network device can configure the frequency range corresponding to each set of RLF determination conditions, so that the terminal device can select a set of RLF determination conditions whose frequency range matches the frequency range corresponding to the BWP, as the RLF determination conditions used to determine whether an RLF has occurred on the BWP. As another example, the network device can configure the service data characteristics corresponding to each set of RLF determination conditions, so that the terminal device can select a set of RLF determination conditions whose service data characteristics match the characteristics of the service data transmitted on the BWP, as the RLF determination conditions used to determine whether an RLF has occurred on the BWP. In some scenarios, the network device can semi-statically indicate the identifier of the RLF determination conditions used.

As another example, network devices can dynamically indicate the RLF decision conditions used. For instance, the RLF decision conditions used can be indicated via a MAC CE or a downlink physical layer signal, which can carry an identifier of the RLF decision conditions used.

As another example, network devices can indicate the RLF decision conditions used in a combination of semi-static and dynamic methods.

In Scheme 1, the terminal device can perform RLM (RLF detection) independently for each BWP based on the RS configuration associated with each BWP and the RLF determination condition. For example, for a certain BWP (denoted as BWP#1), the terminal device can receive RS according to the RS configuration associated with BWP#1, and determine whether BWP#1 has experienced an RLF based on the measurement result obtained by measuring the RS and the RLF determination condition associated with BWP#1.

In some embodiments, if a terminal device receives an RLF indication on a BWP reported by the physical layer, it may report the RLF information to the network device.

In some embodiments, the RLF information can be transmitted via RRC signaling. Each RRC signaling message may carry RLF information corresponding to one or more BWPs, and the RLF information corresponding to each BWP may carry the corresponding BWP number (index).

In some embodiments, the RLF information can be reported via a MAC CE. Each MAC CE can carry RLF information corresponding to one or more BWPs. As one implementation, the MAC CE can use a bitmap to indicate whether multiple BWPs have experienced an RLF.

In some embodiments, the RLF information corresponding to a certain BWP can be reported by any other available BWP; or, it can be reported by a specific BWP (such as a default BWP/initial BWP/small BWP with low bandwidth); or, it can be reported by the BWP with the best signal quality; or, it can be reported by a BWP whose signal quality meets a certain threshold.

In some embodiments, if there is no BWP available for reporting RLF information, an RRC connection reconstruction is triggered.

According to the technical approach in Solution 1, each BWP can be independently configured with configuration information related to RLF detection, thus supporting more flexible RLF determination. Furthermore, multiple sets of RLF determination conditions can be configured, which are related to various factors such as the frequency range corresponding to the BWP, further increasing the system's flexibility. In Solution 1, the RLM and reporting of each BWP are relatively independent, reducing the probability of service interruption caused by triggering RRC connection reconstruction, resulting in stronger system robustness.

Option 2

In Option 2, the same RS configuration can be configured for each BWP group (or multiple BWPs), or in other words, the RS configuration granularity is per BWP group (per-BWP group) (or multiple BWPs).

It should be noted that, in the embodiments of this application, the RS configuration configured for a certain BWP group (or multiple BWPs) is the RS configuration associated with that BWP group (or multiple BWPs).

In some embodiments, Scheme 2 can be applied to the case where multiple BWPs are intra-frequency, that is, multiple BWPs are located in a continuous frequency band. In some embodiments, Scheme 2 can be applied to the case where multiple BWPs correspond to co-located base stations, that is, multiple BWPs are configured on co-located base stations.

In some embodiments, a terminal device may be configured with one or more BWP groups simultaneously, and the number of BWP groups that a terminal device can be configured with may be related to the capabilities of the terminal device.

In Scheme 2, corresponding RLF determination conditions can be configured for each BWP, or in other words, the configuration granularity of the RLF determination conditions is per-BWP. For a certain BWP group, the terminal device can perform RLM (RLF detection) for one or more BWPs in that BWP group. When an RLF is detected in a BWP, if there are other available BWPs (BWPs that have not experienced RLF), the terminal device can report the RLF information through the other available BWPs; if all BWPs experience RLF, the RRC connection reconstruction process is triggered.

In Scheme 2, the network device can send configuration information related to RLM (such as RLF detection) to the terminal device. This configuration information may include RS configuration and RLF determination condition configuration.

In some embodiments, RS configuration is configured for each BWP group (or multiple BWPs), and each BWP group can be configured with... One or more RS configurations can be set. For example, the number of RS configurations that can be configured in each BWP group is related to the capabilities of the terminal device, the frequency band corresponding to the BWP group, the SCS configuration, etc.

In some embodiments, RS configuration may include: the RS's identifier (index); the RS's type; and the RS's specific time-frequency domain location.

In some embodiments, the RLF decision condition configuration is configured separately for each BWP.

In some embodiments, the RLF determination condition configuration may include: a timer value and a maximum number of consecutive step losses for determining whether an RLF has occurred on the BWP; and a tolerable error threshold for determining whether a step loss has occurred on the BWP.

In some embodiments, one or more sets of RLF decision conditions can be configured for each BWP.

In some embodiments, the factors influencing the RLF determination criteria for a BWP association may include one or more of the following:

The frequency range corresponding to this BWP (high frequency or low frequency, etc.);

The number of RSs associated with this BWP;

The characteristics of the service data transmitted on the BWP, or in other words, the characteristics of the services supported by the BWP;

The number of currently available BWPs;

The access technology (such as TN/NTN/SL/NR/6G, etc.) used by the terminal device on this BWP.

For details on the above factors, please refer to a) to e) in Scheme 1, which will not be repeated here.

In some embodiments, when multiple sets of RLF decision conditions are configured for a certain BWP, the network device may semi-statically indicate the RLF decision conditions used (e.g., configure the correspondence between each set of RLF decision conditions and the above factors, and/or the identifier of the RLF decision conditions used) and/or dynamically indicate the RLF decision conditions used (e.g., indicate the identifier of the RLF decision conditions used via MAC CE or downlink physical layer signals).

In Scheme 2, for a BWP group (or multiple BWPs), the terminal device can receive an RS according to the RS configuration associated with the BWP group (or multiple BWPs), and determine whether at least one BWP in the BWP group (or multiple BWPs) has experienced an RLF based on the measurement results obtained from measuring the RS. For example, if the BWP group (or multiple BWPs) includes BWP#1, then the terminal device can determine whether BWP#1 has experienced an RLF based on the measurement results obtained from measuring the RS and the RLF determination conditions associated with BWP#1.

In some embodiments, the terminal device may perform RLM (RLF detection) on the first BWP in the BWP group (or the plurality of BWPs). The first BWP may be: a BWP configured (indicated) by the network device; or a currently used BWP; or a BWP corresponding to a specific service (e.g., a BWP corresponding to the highest priority service); or a default BWP; or an initial BWP; or a BWP containing RS.

In some embodiments, if a terminal device receives an RLF indication on a BWP reported by the physical layer, it may report the RLF information to the network device.

In some embodiments, the RLF information can be transmitted via RRC signaling. The RRC signaling may include RLF information corresponding to one or more BWPs, and/or the BWP number (index) of one or more BWPs that caused the RLF.

In some embodiments, the RLF information can be reported via MAC CE.

In some embodiments, the RLF information can be reported through the current group or other available BWP groups. As an example, the RLF information can be reported through any available BWP; or through a specific BWP (such as a default BWP/initial BWP/small BWP with low bandwidth); or through the BWP with the best signal quality; or through a BWP whose signal quality meets a certain threshold.

In some embodiments, if no other BWP is available, an RRC connection reconstruction is triggered.

According to the technical means in Scheme 2, multiple BWPs within a continuous frequency band, or multiple BWPs configured on a co-located base station, can share the same RS. In this way, terminal equipment can monitor only the RS, instead of monitoring the corresponding RS for each BWP separately, thus saving costs. Furthermore, since different BWPs have different bandwidths, data transmission characteristics, and therefore different error tolerance levels (or requirements for RLF determination conditions), RLF determination conditions can be configured separately for each BWP, allowing for more flexible adaptation to different needs.

Option 3

In Scheme 3, the same RS configuration can be configured for each BWP group (or multiple BWPs), or in other words, the RS configuration granularity is per BWP group (per-BWP group) (or multiple BWPs).

In some embodiments, Scheme 3 can be applied to the case where multiple BWPs are intra-frequency, that is, multiple BWPs are located in a continuous frequency band. In some embodiments, Scheme 3 can be applied to the case where multiple BWPs correspond to co-located base stations, that is, multiple BWPs are configured on co-located base stations.

In some embodiments, a terminal device may be configured with one or more BWP groups simultaneously, and the number of BWP groups that a terminal device can be configured with may be related to the capabilities of the terminal device.

In Scheme 3, the same RLF decision conditions can be configured for each BWP group (or multiple BWPs), or in other words, the configuration granularity of the RLF decision conditions is also per BWP group (per-BWP group) (or multiple BWPs).

For a given BWP group (or multiple BWPs), the terminal device can perform RLM (RLF detection) for that BWP group (or multiple BWPs). When an RLF is detected in that BWP group (or multiple BWPs), if other available BWPs exist, the terminal device can report the RLF information through those other available BWPs; if no other available BWPs exist, the RRC connection reconstruction process is triggered. The BWP used to report the RLF information could, for example, belong to another BWP group that has not experienced an RLF.

In Scheme 3, the network device can send configuration information related to RLM (RLF detection) to the terminal device. This configuration information may include RS configuration and RLF determination condition configuration.

In some embodiments, RS configuration is performed for each BWP group (or multiple BWPs), and each BWP group can be configured with one or more RS configurations. For example, the number of RS configurations that can be configured for each BWP group is related to the capabilities of the terminal device, the frequency band corresponding to the BWP group, the SCS configuration, etc.

In some embodiments, RS configuration may include: the RS's identifier (index); the RS's type; and the RS's specific time-frequency domain location.

In some embodiments, the RLF decision criteria configuration is configured for each BWP group (or multiple BWPs).

In some embodiments, the RLF determination condition configuration may include: a timer value and a maximum consecutive number of steps lost for determining whether an RLF has occurred in a BWP group (or multiple BWPs); and a tolerable error threshold for determining whether a terminal device has experienced a steps lost in a BWP group (or multiple BWPs).

In some embodiments, one or more sets of RLF determination conditions can be configured for each BWP group (or multiple BWPs).

In some embodiments, the factors influencing the RLF determination criteria for a BWP group (or multiple BWPs) association may include one or more of the following:

The frequency range (high frequency or low frequency, etc.) corresponding to at least one BWP in the BWP group (or multiple BWPs);

The number of RSs associated with the BWP group (or the multiple BWPs);

The characteristics of the service data transmitted on at least one BWP in the BWP group (or the plurality of BWPs);

The number of BWPs currently available;

The access technology (such as TN/NTN/SL/NR/6G, etc.) used by the terminal device on at least one BWP in the BWP group (or the multiple BWPs).

In some embodiments, when multiple sets of RLF decision conditions are configured for a certain BWP group (or multiple BWPs), the network device may semi-statically indicate the RLF decision conditions used (e.g., configure the correspondence between each set of RLF decision conditions and the above factors, and/or the identifier of the RLF decision conditions used) and/or dynamically indicate the RLF decision conditions used (e.g., indicate the identifier of the RLF decision conditions used via MAC CE or downlink physical layer signals).

In Scheme 3, for a certain BWP group (or multiple BWPs), the terminal device can receive RS according to the RS configuration associated with the BWP group (or multiple BWPs), and can determine whether the BWP group (or multiple BWPs) has experienced an RLF based on the measurement results obtained by measuring the RS and the RLF determination conditions associated with the BWP group (or multiple BWPs).

In some embodiments, if a terminal device receives an RLF indication on a BWP group (or multiple BWPs) reported by the physical layer, it may report the RLF information to the network device.

In some embodiments, the RLF information can be transmitted via RRC signaling. The RRC signaling may carry a 1-bit failure indication and/or the identifier/index corresponding to the BWP group (or the plurality of BWPs).

In some embodiments, the RLF information can be reported via MAC CE.

In some embodiments, the RLF information can be reported through any other available BWP group. For example, the RLF information can be reported through any available BWP within that available BWP group; or, it can be reported through a specific BWP (such as a default BWP/initial BWP/small BWP with low bandwidth); or, it can be reported through the BWP with the best signal quality; or, it can be reported through a BWP whose signal quality meets a certain threshold.

In some embodiments, if no other BWP group is available, an RRC connection reconstruction is triggered.

According to the technical means in Scheme 3, multiple BWPs included in a continuous frequency band, or multiple BWPs configured on a co-located base station, can share the same RS. In this way, the terminal equipment only needs to monitor the RS, instead of monitoring the corresponding RS for each BWP separately, thus saving costs.

It should be noted that in some scenarios, the BWP groups in Schemes 2 and 3 may not have a configuration binding relationship, meaning there is no concept of a "group." In this case, it can be understood that multiple BWPs use the same/only one RS configuration, and the terminal device only needs to perform RLM measurements on that RS. In some scenarios, the RS configuration may not be bound to the BWP; that is, the RS configuration can be common, or the RS can be configured on a specific BWP, such as on a low-frequency BWP. A correlation may exist between the BWP and the RS, and the terminal device can use this correlation to measure the RS associated with the BWP, thereby performing RLM measurements on that BWP.

The technical solution of this application embodiment can debind carrier resource monitoring from the cell, that is, the radio link monitoring mechanism is not bound to the Pcell or PScell, thereby enabling more flexible carrier resource monitoring and control.

The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solution of this application, and all such simple modifications fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, and they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and/or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solution should also fall within the protection scope of this application.

It should also be understood that in the various method embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. Furthermore, in the embodiments of this application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and "sidelink" indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. Additionally, in the embodiments of this application, the term "and/or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. Specifically, A and/or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the character "/" in this document generally indicates that the preceding and following related objects have an "or" relationship.

Based on the foregoing embodiments, this application provides a corresponding wireless link monitoring device.

Figure 4 is a schematic diagram of the structure of a wireless link monitoring device provided in an embodiment of this application, which is applied to a terminal device. As shown in Figure 4, the wireless link monitoring device 400 (hereinafter referred to as device 400) includes:

The first communication unit 401 is configured to receive first configuration information and second configuration information from a network device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources, and the second configuration information is used to configure one or more determination conditions associated with multiple frequency resources. The multiple frequency resources are used for communication between the device 400 and the network device. The first communication unit 401 is also configured to receive one or more reference signals from the network device at the time-frequency domain position, wherein the reference signals associated with the first frequency resources and the determination conditions are used to determine whether a radio link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the multiple frequency resources.

In some embodiments, among multiple frequency resources, different frequency resources are associated with different reference signals, and the determination conditions for association between different frequency resources are different.

In some embodiments, among multiple frequency resources, different frequency resources are associated with the same reference signal, but the determination conditions for association between different frequency resources are different.

In some embodiments, the reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the first frequency resource association includes a first determination condition, which includes: a first threshold, a second threshold, and a first duration; the first threshold, and the measurement result obtained by measuring the first reference signal, are used to determine whether the device 400 has lost synchronization on the first frequency resource; the second threshold, and the number of times the device 400 has continuously lost synchronization on the first frequency resource within the first duration, are used to determine whether the first frequency resource has experienced an RLF.

In some embodiments, the first determination condition is related to one or more of the following: the frequency range corresponding to the first frequency resource; the number of reference signals associated with the first frequency resource; the characteristics of the service data transmitted on the first frequency resource; the number of currently available frequency resources; and the access technology used by the device 400 on the first frequency resource.

In some embodiments, the number of first determination conditions is one or more; when the number of first determination conditions is multiple, a second determination condition among the multiple first determination conditions is used to determine whether a first frequency resource has experienced an RLF; the second determination condition is indicated by first information sent by the network device, and/or determined based on the second information sent by the network device.

In some embodiments, the first information includes an identifier of a second determination condition; the second information includes one or more of the following: the frequency range corresponding to each first determination condition; the number or range of reference signals corresponding to each first determination condition; the characteristics of the service data corresponding to each first determination condition; the number or range of available frequency resources corresponding to each first determination condition; the access technology corresponding to each first determination condition; and the identifier of the second determination condition.

In some embodiments, the second determination condition satisfies one or more of the following: the frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second determination condition; the number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; the characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition; the number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; and the access technology used by the device 400 on the first frequency resource is consistent with the access technology corresponding to the second determination condition.

In some embodiments, the first communication unit 401 is further configured to: in the event of an RLF occurring on the first frequency resource, send third information to the network device via the second frequency resource, wherein the third information is used to indicate that an RLF has occurred on the first frequency resource; wherein an RLF has not occurred on the second frequency resource.

In some embodiments, the third information is carried via Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE. RRC signaling or MAC CE is used to indicate that an RRF has occurred on one or more frequency resources.

In some embodiments, the first communication unit 401 is further configured to: in the event of a first frequency resource RLF, if no available frequency resource exists, send fourth information to the network device, the fourth information being used to trigger the re-establishment of the RRC connection between the device 400 and the network device.

In some embodiments, the first frequency resource is: a frequency resource indicated by the network device; or a frequency resource currently used by the device 400; or a frequency resource used for transmitting specific service data; or a frequency resource used by default by the device 400; or a frequency resource initially used by the device 400; or a frequency resource containing a reference signal.

In some embodiments, among multiple frequency resources, the reference signals associated with different frequency resources are the same, and the determination conditions for the association of different frequency resources are the same; the reference signals and determination conditions associated with multiple frequency resources are used to determine whether multiple frequency resources have experienced RLF.

In some embodiments, the reference signal associated with multiple frequency resources includes a first reference signal, and the determination condition for the association of multiple frequency resources includes a first determination condition, which includes: a first threshold, a second threshold, and a first duration; the first threshold, and the measurement result obtained by measuring the first reference signal, are used to determine whether the device 400 has lost synchronization on multiple frequency resources; the second threshold, and the number of times the device 400 has continuously lost synchronization on multiple frequency resources within the first duration, are used to determine whether RLF has occurred on multiple frequency resources.

In some embodiments, the first determination condition is related to one or more of the following: the frequency range corresponding to at least one of the plurality of frequency resources; the number of reference signals associated with the plurality of frequency resources; the characteristics of the service data transmitted on at least one of the plurality of frequency resources; the number of currently available frequency resources; and the access technology used by the device 400 on at least one of the plurality of frequency resources.

In some embodiments, the number of first determination conditions is one or more; when the number of first determination conditions is multiple, a second determination condition among the multiple first determination conditions is used to determine whether multiple frequency resources have experienced RLF; the second determination condition is indicated by first information sent by the network device, and/or determined based on the second information sent by the network device.

In some embodiments, the first information includes an identifier of a second determination condition; the second information includes one or more of the following: the frequency range corresponding to each first determination condition; the number or range of reference signals corresponding to each first determination condition; the characteristics of the service data corresponding to each first determination condition; the number or range of available frequency resources corresponding to each first determination condition; the access technology corresponding to each first determination condition; and the identifier of the second determination condition.

In some embodiments, the second determination condition satisfies one or more of the following: the frequency range corresponding to at least one of the multiple frequency resources is included within the frequency range corresponding to the second determination condition; the number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; the characteristics of the service data corresponding to the second determination condition include the characteristics of the service data transmitted on at least one of the multiple frequency resources; the number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; the access technology corresponding to the second determination condition includes the access technology used by the device 400 on at least one of the multiple frequency resources.

In some embodiments, the first communication unit 401 is further configured to: send third information to the network device via a second frequency resource in the event that multiple frequency resources have experienced an RLF, wherein the third information is used to indicate that multiple frequency resources have experienced an RLF; wherein the second frequency resource has not experienced an RLF.

In some embodiments, multiple frequency resources belong to a first frequency resource group, and a second frequency resource belongs to a second frequency resource group.

In some embodiments, the third information is carried via RRC signaling or MAC CE.

In some embodiments, the first communication unit 401 is further configured to: in the event of an RLF (Recurrent Frequency Failure) on multiple frequency resources, if no available frequency resources exist, send fourth information to the network device, the fourth information being used to trigger the reconstruction of the RRC (Recurrent Frequency Control) connection between the device 400 and the network device.

In some embodiments, the second frequency resource is: any frequency resource configured by the device 400 that has not experienced an RLF; or, a specific frequency resource among the frequency resources configured by the device 400; or, a frequency resource configured by the device 400 whose signal quality meets specific conditions.

In some embodiments, multiple frequency resources are located within a continuous frequency band, or multiple frequency resources are associated with network devices that share a common address.

In some embodiments, the frequency resource is the bandwidth portion (BWP).

Figure 5 is a schematic diagram of the structure of the wireless link monitoring device provided in this application embodiment, which is applied to network equipment. As shown in Figure 500, the wireless link monitoring device 500 (hereinafter referred to as device 500) includes:

The second communication unit 501 is configured to send first configuration information and second configuration information to the terminal device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources. The second configuration information is used to configure one or more determination conditions associated with multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the device 500. The second communication unit 501 is also configured to send one or more reference signals to the terminal device at the time-frequency domain position. The reference signals associated with the first frequency resource and the determination conditions are used to determine whether a radio link failure (RLF) has occurred on the first frequency resource. The first frequency resource is included in the multiple frequency resources.

In some embodiments, among multiple frequency resources, different frequency resources are associated with different reference signals, and different frequency resources are associated with different reference signals. The conditions for determining a connection are different.

In some embodiments, among multiple frequency resources, different frequency resources are associated with the same reference signal, but the determination conditions for association between different frequency resources are different.

In some embodiments, the reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the association of the first frequency resource includes a first determination condition, which includes: a first threshold, a second threshold, and a first duration; the first threshold, and the measurement result obtained by measuring the first reference signal, are used to determine whether the terminal device has lost synchronization on the first frequency resource; the second threshold, and the number of times the terminal device has continuously lost synchronization on the first frequency resource within the first duration, are used to determine whether the first frequency resource has experienced an RLF.

In some embodiments, the first determination condition is related to one or more of the following: the frequency range corresponding to the first frequency resource; the number of reference signals associated with the first frequency resource; the characteristics of the service data transmitted on the first frequency resource; the number of currently available frequency resources; and the access technology used by the terminal device on the first frequency resource.

In some embodiments, the number of first determination conditions is one or more; when the number of first determination conditions is multiple, a second determination condition among the multiple first determination conditions is used to determine whether a first frequency resource has experienced an RLF; the second determination condition is indicated by the first information sent by the device 500, and/or determined based on the second information sent by the device 500.

In some embodiments, the first information includes an identifier of a second determination condition; the second information includes one or more of the following: the frequency range corresponding to each first determination condition; the number or range of reference signals corresponding to each first determination condition; the characteristics of the service data corresponding to each first determination condition; the number or range of available frequency resources corresponding to each first determination condition; the access technology corresponding to each first determination condition; and the identifier of the second determination condition.

In some embodiments, the second determination condition satisfies one or more of the following: the frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second determination condition; the number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; the characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition; the number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; and the access technology used by the terminal device on the first frequency resource is consistent with the access technology corresponding to the second determination condition.

In some embodiments, the second communication unit 501 is further configured to: receive third information from the terminal device, the third information being transmitted through the second frequency resource, the third information being used to indicate that an RLF has occurred on the first frequency resource; wherein, no RLF has occurred on the second frequency resource.

In some embodiments, the third information is carried via Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE, which is used to indicate that one or more frequency resources have experienced an RLF.

In some embodiments, the second communication unit 501 is further configured to receive fourth information from the terminal device, the fourth information being used to trigger the reconstruction of the RRC connection between the terminal device and the device 500.

In some embodiments, the first frequency resource is: a frequency resource indicated by device 500; or a frequency resource currently used by the terminal device; or a frequency resource used for transmitting specific service data; or a frequency resource used by default by the terminal device; or a frequency resource initially used by the terminal device; or a frequency resource containing a reference signal.

In some embodiments, among multiple frequency resources, the reference signals associated with different frequency resources are the same, and the determination conditions for the association of different frequency resources are the same; the reference signals and determination conditions associated with multiple frequency resources are used to determine whether multiple frequency resources have experienced RLF.

In some embodiments, the reference signal associated with multiple frequency resources includes a first reference signal, and the determination condition for the association of multiple frequency resources includes a first determination condition, which includes: a first threshold, a second threshold, and a first duration; the first threshold, and the measurement result obtained by measuring the first reference signal, are used to determine whether the terminal device has lost synchronization on multiple frequency resources; the second threshold, and the number of times the terminal device has continuously lost synchronization on multiple frequency resources within the first duration, are used to determine whether RLF has occurred on multiple frequency resources.

In some embodiments, the first determination condition is related to one or more of the following: the frequency range corresponding to at least one of the plurality of frequency resources; the number of reference signals associated with the plurality of frequency resources; the characteristics of the service data transmitted on at least one of the plurality of frequency resources; the number of currently available frequency resources; and the access technology used by the terminal device on at least one of the plurality of frequency resources.

In some embodiments, the number of first determination conditions is one or more; when the number of first determination conditions is multiple, a second determination condition among the multiple first determination conditions is used to determine whether multiple frequency resources have experienced RLF; the second determination condition is indicated by the first information sent by the device 500, and/or determined based on the second information sent by the device 500.

In some embodiments, the first information includes an identifier of a second determination condition; the second information includes one or more of the following: the frequency range corresponding to each first determination condition; the number or range of reference signals corresponding to each first determination condition; the characteristics of the service data corresponding to each first determination condition; the number or range of available frequency resources corresponding to each first determination condition; the access technology corresponding to each first determination condition; and the identifier of the second determination condition.

In some embodiments, the second determination condition satisfies one or more of the following: the frequency range corresponding to at least one of the multiple frequency resources is included within the frequency range corresponding to the second determination condition; the number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; the second determination condition The characteristics of the corresponding service data include the characteristics of the service data transmitted on at least one of the multiple frequency resources; the number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; the access technology corresponding to the second determination condition includes the access technology used by the terminal device on at least one of the multiple frequency resources.

In some embodiments, the second communication unit 501 is further configured to: receive third information from the terminal device, the third information being transmitted through the second frequency resource, the third information being used to indicate that multiple frequency resources have experienced RLF; wherein, the second frequency resource has not experienced RLF.

In some embodiments, multiple frequency resources belong to a first frequency resource group, and a second frequency resource belongs to a second frequency resource group.

In some embodiments, the third information is carried via RRC signaling or MAC CE.

In some embodiments, the second communication unit 501 is further configured to receive fourth information from the terminal device, the fourth information being used to trigger the reconstruction of the RRC connection between the terminal device and the device 500.

In some embodiments, the second frequency resource is: any frequency resource configured by the terminal device that has not experienced an RLF; or a specific frequency resource among the frequency resources configured by the terminal device; or a frequency resource configured by the terminal device whose signal quality meets specific conditions.

In some embodiments, multiple frequency resources are located within a continuous frequency band, or multiple frequency resources are associated with network devices that share a common address.

In some embodiments, the frequency resource is the bandwidth portion (BWP).

Those skilled in the art should understand that the description of the wireless link monitoring device in the embodiments of this application can be understood with reference to the description of the wireless link monitoring method in the embodiments of this application.

Figure 6 is a schematic structural diagram of a communication device provided in an embodiment of this application. This communication device can be a terminal device or a network device. The communication device 600 shown in Figure 6 includes a processor 610, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

Optionally, as shown in FIG6, the communication device 600 may further include a memory 620. The processor 610 may retrieve and run computer programs from the memory 620 to implement the methods described in the embodiments of this application.

The memory 620 can be a separate device independent of the processor 610, or it can be integrated into the processor 610.

Optionally, as shown in FIG6, the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

The transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of antennas may be one or more.

Optionally, the communication device 600 may specifically be a terminal device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

Optionally, the communication device 600 may specifically be a network device in the embodiments of this application, and the communication device 600 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

Figure 7 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 700 shown in Figure 7 includes a processor 710, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

Optionally, as shown in FIG7, the chip 700 may further include a memory 720. The processor 710 can retrieve and run computer programs from the memory 720 to implement the methods in the embodiments of this application.

The memory 720 can be a separate device independent of the processor 710, or it can be integrated into the processor 710.

Optionally, the chip 700 may also include an input interface 730. The processor 710 can control the input interface 730 to communicate with other devices or chips; specifically, it can acquire information or data sent by other devices or chips.

Optionally, the chip 700 may also include an output interface 740. The processor 710 can control the output interface 740 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

Optionally, the chip can be applied to the terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

This application also provides a computer storage medium storing one or more programs, which can be executed by one or more processors to implement the methods in this application.

Figure 8 is a schematic block diagram of a communication system 800 provided in an embodiment of this application. As shown in Figure 8, the communication system 800 includes a terminal device 810 and a network device 820.

The terminal device 810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be described in detail here.

It should be understood that the processor in this application embodiment may be an integrated circuit chip with signal processing capabilities. During implementation, Each step of the above method embodiments can be implemented by integrated logic circuits in the processor hardware or by instructions in software form. The processor can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor. The steps of the methods disclosed in the embodiments of this application can be directly implemented by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software modules can reside in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. This storage medium is located in memory; the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

This application also provides a computer-readable storage medium for storing computer programs.

Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

This application also provides a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

This application also provides a computer program.

Optionally, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the couplings or direct couplings or communication connections shown or discussed may be... It is an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims (103)

A wireless link monitoring method, applied to a terminal device, the method comprising: The terminal device receives first configuration information and second configuration information from a network device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources. The second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the network device. The network device receives one or more reference signals at the time-frequency domain location, wherein the reference signal associated with the first frequency resource and the determination condition are used to determine whether a radio link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the plurality of frequency resources. According to the method of claim 1, wherein, Among the multiple frequency resources, different frequency resources are associated with different reference signals, and the determination conditions for association between different frequency resources are different. According to the method of claim 1, wherein, Among the multiple frequency resources, different frequency resources are associated with the same reference signal, but the determination conditions for association between different frequency resources are different. The method according to claim 2 or 3, wherein, The reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the first frequency resource association includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the first frequency resource. The second threshold and the number of times the terminal device continuously loses synchronization on the first frequency resource within the first duration are used to determine whether an RLF (Restricted Step Failure) has occurred on the first frequency resource. The method according to claim 4, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to the first frequency resource; The number of reference signals associated with the first frequency resource; Characteristics of service data transmitted on the first frequency resource; The number of frequency resources currently available; The access technology used by the terminal device on the first frequency resource. The method according to claim 4 or 5, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the first frequency resource has experienced an RLF; the second determination condition is indicated by the first information sent by the network device, and/or determined based on the second information sent by the network device. The method according to claim 6, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The method according to claim 6 or 7, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second determination condition; The number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; The characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the above conditions. The second judgment condition corresponds to the range of available frequency resources; The access technology used by the terminal device on the first frequency resource is consistent with the access technology corresponding to the second determination condition. The method according to any one of claims 1 to 8, wherein the method further comprises: In the event of an RLF (Restricted Frequency Failure) on the first frequency resource, a third message is sent to the network device via the second frequency resource, the third message indicating that an RLF has occurred on the first frequency resource; wherein, no RLF has occurred on the second frequency resource. The method according to claim 9, wherein, The third information is carried via Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE, which is used to indicate that one or more frequency resources have experienced an RLF. The method according to any one of claims 1 to 8, wherein the method further comprises: If an RLF occurs on the first frequency resource and no available frequency resource exists, a fourth message is sent to the network device. The fourth message is used to trigger the re-establishment of the RRC connection between the terminal device and the network device. The method according to any one of claims 1 to 11, wherein, The first frequency resource is: The frequency resources indicated by the network device; or... The frequency resources currently used by the terminal device; or... Frequency resources used for transmitting specific service data; or The terminal device uses frequency resources by default; or... The frequency resources initially used by the terminal device; or... Frequency resources including reference signals. According to the method of claim 1, wherein, Among the multiple frequency resources, the reference signals associated with different frequency resources are the same, and the determination conditions for the association of different frequency resources are the same; the reference signals and determination conditions associated with the multiple frequency resources are used to determine whether the multiple frequency resources have experienced RLF. The method according to claim 13, wherein, The reference signal associated with the plurality of frequency resources includes a first reference signal, and the determination condition for the association of the plurality of frequency resources includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the plurality of frequency resources; The second threshold and the number of times the terminal device continuously loses synchronization on the plurality of frequency resources within the first duration are used to determine whether an RLF occurs on the plurality of frequency resources. The method according to claim 14, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources; The number of reference signals associated with the multiple frequency resources; Features of service data transmitted on at least one of the plurality of frequency resources; The number of frequency resources currently available; The terminal device uses the access technology on at least one of the plurality of frequency resources. The method according to claim 14 or 15, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the multiple frequency resources have experienced an RLF; the second determination condition is indicated by the first information sent by the network device, and/or determined based on the second information sent by the network device. The method according to claim 16, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The method according to claim 16 or 17, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources is included within the frequency range corresponding to the second determination condition. The number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition. The characteristics of the service data corresponding to the second determination condition include the characteristics of the service data transmitted on at least one of the plurality of frequency resources; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology corresponding to the second determination condition includes the access technology used by the terminal device on at least one of the plurality of frequency resources. The method according to any one of claims 13 to 18, wherein the method further comprises: In the event that an RLF occurs on the multiple frequency resources, a third message is sent to the network device via a second frequency resource, the third message indicating that an RLF has occurred on the multiple frequency resources; wherein, the second frequency resource has not experienced an RLF. The method according to claim 19, wherein, The multiple frequency resources belong to the first frequency resource group, and the second frequency resource belongs to the second frequency resource group. The method according to claim 19 or 20, wherein, The third information is carried via RRC signaling or MAC CE. The method according to any one of claims 13 to 18, wherein the method further comprises: In the event of an RLF (Recurrent Frequency Failure) on multiple frequency resources, if no available frequency resources exist, a fourth message is sent to the network device. This fourth message is used to trigger the re-establishment of the RRC (Recurrent Frequency Control) connection between the terminal device and the network device. The method according to any one of claims 9, 10, 19 to 21, wherein, The second frequency resource is: The terminal device has been configured with any frequency resource that has not experienced an RLF; or, A specific frequency resource from the frequency resources already configured in the terminal device; or... The terminal device has been configured with frequency resources whose signal quality meets specific conditions. The method according to any one of claims 1 to 23, wherein, The multiple frequency resources are located within a continuous frequency band, or the network devices associated with the multiple frequency resources are co-located. The method according to any one of claims 1 to 24, wherein, The frequency resource is the bandwidth portion (BWP). A wireless link monitoring method, applied to a network device, the method comprising: Send first configuration information and second configuration information to the terminal device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources. The second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the network device. The one or more reference signals are sent to the terminal device at the time-frequency domain location, wherein the reference signal associated with the first frequency resource and the determination condition are used to determine whether a radio link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the plurality of frequency resources. The method according to claim 26, wherein, Among the multiple frequency resources, different frequency resources are associated with different reference signals, and the determination conditions for association between different frequency resources are different. The method according to claim 26, wherein, Among the multiple frequency resources, different frequency resources are associated with the same reference signal, but the determination conditions for association between different frequency resources are different. The method according to claim 27 or 28, wherein, The reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the first frequency resource association includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the first frequency resource. The second threshold and the number of times the terminal device continuously loses synchronization on the first frequency resource within the first duration are used to determine whether an RLF (Restricted Step Failure) has occurred on the first frequency resource. The method according to claim 29, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to the first frequency resource; The number of reference signals associated with the first frequency resource; Characteristics of service data transmitted on the first frequency resource; The number of frequency resources currently available; The access technology used by the terminal device on the first frequency resource. The method according to claim 29 or 30, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the first frequency resource has experienced an RLF; the second determination condition is indicated by the first information sent by the network device, and/or determined based on the second information sent by the network device. The method according to claim 31, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The method according to claim 31 or 32, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second determination condition; The number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; The characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology used by the terminal device on the first frequency resource is consistent with the access technology corresponding to the second determination condition. The method according to any one of claims 26 to 33, wherein the method further comprises: The terminal device receives third information, which is transmitted via a second frequency resource, and the third information is used to indicate that an RLF has occurred on the first frequency resource; wherein, no RLF has occurred on the second frequency resource. The method according to claim 34, wherein, The third information is carried via Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE, which is used to indicate that one or more frequency resources have experienced an RLF. The method according to any one of claims 26 to 33, wherein the method further comprises: The terminal device receives a fourth message, which is used to trigger the reconstruction of the RRC connection between the terminal device and the network device. The method according to any one of claims 26 to 36, wherein, The first frequency resource is: The frequency resources indicated by the network device; or... The frequency resources currently used by the terminal device; or... Frequency resources used for transmitting specific service data; or The terminal device uses frequency resources by default; or... The frequency resources initially used by the terminal device; or... Frequency resources including reference signals. The method according to claim 26, wherein, Among the multiple frequency resources, the reference signals associated with different frequency resources are the same, and the determination conditions for the association of different frequency resources are the same; the reference signals and determination conditions associated with the multiple frequency resources are used to determine whether the multiple frequency resources have experienced RLF. The method according to claim 38, wherein, The reference signal associated with the plurality of frequency resources includes a first reference signal, and the determination condition for the association of the plurality of frequency resources includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the plurality of frequency resources; The second threshold and the number of times the terminal device continuously loses synchronization on the plurality of frequency resources within the first duration are used to determine whether an RLF occurs on the plurality of frequency resources. The method according to claim 39, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources; The number of reference signals associated with the multiple frequency resources; Features of service data transmitted on at least one of the plurality of frequency resources; The number of frequency resources currently available; The terminal device uses the access technology on at least one of the plurality of frequency resources. The method according to claim 39 or 40, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the multiple frequency resources have experienced an RLF; the second determination condition is indicated by the first information sent by the network device, and/or determined based on the second information sent by the network device. The method according to claim 41, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The method according to claim 41 or 42, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to at least one of the multiple frequency resources is included within the frequency range corresponding to the second determination condition. The number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition. The characteristics of the service data corresponding to the second determination condition include the characteristics of the service data transmitted on at least one of the plurality of frequency resources; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology corresponding to the second determination condition includes the access technology used by the terminal device on at least one of the plurality of frequency resources. The method according to any one of claims 38 to 43, wherein the method further comprises: The terminal device receives third information, which is transmitted through a second frequency resource, and the third information is used to indicate that an RLF has occurred on the plurality of frequency resources; wherein, no RLF has occurred on the second frequency resource. The method according to claim 44, wherein, The multiple frequency resources belong to the first frequency resource group, and the second frequency resource belongs to the second frequency resource group. The method according to claim 44 or 45, wherein, The third information is carried via RRC signaling or MAC CE. The method according to any one of claims 38 to 43, wherein the method further comprises: The terminal device receives a fourth message, which is used to trigger the reconstruction of the RRC connection between the terminal device and the network device. The method according to any one of claims 34, 35, 44 to 46, wherein, The second frequency resource is: The terminal device has been configured with any frequency resource that has not experienced an RLF; or, A specific frequency resource from the frequency resources already configured in the terminal device; or... The terminal device has been configured with frequency resources whose signal quality meets specific conditions. The method according to any one of claims 26 to 48, wherein, The multiple frequency resources are located within a continuous frequency band, or the network devices associated with the multiple frequency resources are co-located. The method according to any one of claims 26 to 49, wherein, The frequency resource is the bandwidth portion (BWP). A wireless link monitoring device, the device comprising: The first communication unit is configured to receive first configuration information and second configuration information from a network device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources. The second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the device and the network device. The first communication unit is further configured to receive one or more reference signals from the network device at the time-frequency domain location, wherein the reference signal associated with the first frequency resource and the determination condition are used to determine whether a radio link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the plurality of frequency resources. The apparatus according to claim 51, wherein, Among the multiple frequency resources, different frequency resources are associated with different reference signals, and the determination conditions for association between different frequency resources are different. The apparatus according to claim 51, wherein, Among the multiple frequency resources, different frequency resources are associated with the same reference signal, but the determination conditions for association between different frequency resources are different. The apparatus according to claim 52 or 53, wherein, The reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the first frequency resource association includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the device has lost synchronization on the first frequency resource; The second threshold and the number of times the device continuously loses synchronization on the first frequency resource within the first duration are used to determine whether an RLF (Restricted Step Failure) has occurred on the first frequency resource. The apparatus according to claim 54, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to the first frequency resource; The number of reference signals associated with the first frequency resource; Characteristics of service data transmitted on the first frequency resource; The number of frequency resources currently available; The access technology used by the device on the first frequency resource. The apparatus according to claim 54 or 55, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the first frequency resource has experienced an RLF; the second determination condition is indicated by the first information sent by the network device, and/or determined based on the second information sent by the network device. The apparatus according to claim 56, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The apparatus according to claim 56 or 57, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second determination condition; The number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; The characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology used by the device on the first frequency resource is consistent with the access technology corresponding to the second determination condition. The apparatus according to any one of claims 51 to 58, wherein the first communication unit is further configured to: In the event of an RLF (Restricted Frequency Failure) on the first frequency resource, a third message is sent to the network device via the second frequency resource, the third message indicating that an RLF has occurred on the first frequency resource; wherein, no RLF has occurred on the second frequency resource. The apparatus according to claim 59, wherein, The third information is carried via Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE, which is used to indicate that one or more frequency resources have experienced an RLF. The apparatus according to any one of claims 51 to 58, wherein the first communication unit is further configured to: If an RLF occurs on the first frequency resource and no available frequency resource exists, a fourth message is sent to the network device. The fourth message is used to trigger the reconstruction of the RRC connection between the device and the network device. The apparatus according to any one of claims 51 to 61, wherein, The first frequency resource is: The frequency resources indicated by the network device; or... The frequency resources currently used by the device; or, Frequency resources used for transmitting specific service data; or The device uses the frequency resources by default; or... The frequency resources initially used by the device; or... Frequency resources including reference signals. The apparatus according to claim 51, wherein, Among the multiple frequency resources, the reference signals associated with different frequency resources are the same, and the determination conditions for the association of different frequency resources are the same; the reference signals and determination conditions associated with the multiple frequency resources are used to determine whether the multiple frequency resources have experienced RLF. The apparatus according to claim 63, wherein, The reference signal associated with the plurality of frequency resources includes a first reference signal, and the determination condition for the association of the plurality of frequency resources includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the device loses synchronization on the plurality of frequency resources; The second threshold, and the number of times the device continuously loses synchronization on the plurality of frequency resources within the first duration, are used to determine whether an RLF occurs on the plurality of frequency resources. The apparatus according to claim 64, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources; The number of reference signals associated with the multiple frequency resources; Features of service data transmitted on at least one of the plurality of frequency resources; The number of frequency resources currently available; The access technology used by the device on at least one of the plurality of frequency resources. The apparatus according to claim 64 or 65, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the multiple frequency resources have experienced an RLF; the second determination condition is indicated by the first information sent by the network device, and/or determined based on the second information sent by the network device. The apparatus according to claim 66, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The apparatus according to claim 66 or 67, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources is included within the frequency range corresponding to the second determination condition. The number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition. The characteristics of the service data corresponding to the second determination condition include the characteristics of the service data transmitted on at least one of the plurality of frequency resources; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology corresponding to the second determination condition includes the access technology used by the device on at least one of the plurality of frequency resources. The apparatus according to any one of claims 63 to 68, wherein the first communication unit is further configured to: In the event that an RLF occurs on the multiple frequency resources, a third message is sent to the network device via a second frequency resource, the third message indicating that an RLF has occurred on the multiple frequency resources; wherein, the second frequency resource has not experienced an RLF. The apparatus according to claim 69, wherein, The multiple frequency resources belong to the first frequency resource group, and the second frequency resource belongs to the second frequency resource group. The apparatus according to claim 69 or 70, wherein, The third information is carried via RRC signaling or MAC CE. The apparatus according to any one of claims 63 to 68, wherein the first communication unit is further configured to: In the event of an RLF (Recurrent Frequency Failure) occurring on multiple frequency resources, if no available frequency resources exist, a fourth message is sent to the network device. This fourth message is used to trigger the reconstruction of the RRC (Recurrent Frequency Control) connection between the device and the network device. The apparatus according to claims 59, 60, 69 to 71, wherein, The second frequency resource is: The device has been configured with any frequency resource that has not experienced an RLF; or, The device has a specific frequency resource among its configured frequency resources; or... The device has been configured with frequency resources whose signal quality meets specific conditions. The apparatus according to any one of claims 51 to 73, wherein, The multiple frequency resources are located within a continuous frequency band, or the network devices associated with the multiple frequency resources are co-located. The apparatus according to any one of claims 51 to 74, wherein, The frequency resource is the bandwidth portion (BWP). A wireless link monitoring device, the device comprising: The second communication unit is configured to send first configuration information and second configuration information to the terminal device. The first configuration information is used to configure the time-frequency domain position of one or more reference signals associated with multiple frequency resources. The second configuration information is used to configure one or more determination conditions associated with the multiple frequency resources. The multiple frequency resources are used for communication between the terminal device and the device. The second communication unit is further configured to send the one or more reference signals to the terminal device at the time-frequency domain location, wherein the reference signal associated with the first frequency resource and the determination condition are used to determine whether a radio link failure (RLF) has occurred on the first frequency resource, and the first frequency resource is included in the plurality of frequency resources. The apparatus according to claim 76, wherein, Among the multiple frequency resources, different frequency resources are associated with different reference signals, and the determination conditions for association between different frequency resources are different. The apparatus according to claim 76, wherein, Among the multiple frequency resources, different frequency resources are associated with the same reference signal, but the determination conditions for association between different frequency resources are different. The apparatus according to claim 77 or 78, wherein, The reference signal associated with the first frequency resource includes a first reference signal, and the determination condition for the first frequency resource association includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the first frequency resource. The second threshold, and the number of times the terminal device consecutively loses synchronization on the first frequency resource within the first duration. Used to determine whether the first frequency resource has experienced an RLF. The apparatus according to claim 79, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to the first frequency resource; The number of reference signals associated with the first frequency resource; Characteristics of service data transmitted on the first frequency resource; The number of frequency resources currently available; The access technology used by the terminal device on the first frequency resource. The apparatus according to claim 79 or 80, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the first frequency resource has experienced an RLF; the second determination condition is indicated by the first information sent by the device, and/or determined based on the second information sent by the device. The apparatus according to claim 81, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The apparatus according to claim 81 or 82, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to the first frequency resource is included within the frequency range corresponding to the second determination condition; The number of reference signals associated with the first frequency resource is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition; The characteristics of the service data transmitted on the first frequency resource are consistent with the characteristics of the service data corresponding to the second determination condition; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology used by the terminal device on the first frequency resource is consistent with the access technology corresponding to the second determination condition. The apparatus according to any one of claims 76 to 83, wherein the second communication unit is further configured to: The terminal device receives third information, which is transmitted via a second frequency resource, and the third information is used to indicate that an RLF has occurred on the first frequency resource; wherein, no RLF has occurred on the second frequency resource. The apparatus according to claim 84, wherein, The third information is carried via Radio Resource Control (RRC) signaling or Media Access Control (MAC) CE, which is used to indicate that one or more frequency resources have experienced an RLF. The apparatus according to any one of claims 76 to 83, wherein the second communication unit is further configured to: The device receives a fourth message from the terminal device, the fourth message being used to trigger the reconstruction of the RRC connection between the terminal device and the device. The apparatus according to any one of claims 76 to 86, wherein, The first frequency resource is: The frequency resources indicated by the device; or... The frequency resources currently used by the terminal device; or... Frequency resources used for transmitting specific service data; or The terminal device uses frequency resources by default; or... The frequency resources initially used by the terminal device; or... Frequency resources including reference signals. The apparatus according to claim 76, wherein, Among the multiple frequency resources, the reference signals associated with different frequency resources are the same, and the determination conditions for the association of different frequency resources are the same; the reference signals and determination conditions associated with the multiple frequency resources are used to determine whether the multiple frequency resources have experienced RLF. The apparatus according to claim 88, wherein, The reference signal associated with the plurality of frequency resources includes a first reference signal, and the determination condition for the association of the plurality of frequency resources includes a first determination condition, which includes: First threshold, second threshold, and first duration; The first threshold and the measurement result obtained by measuring the first reference signal are used to determine whether the terminal device has lost synchronization on the plurality of frequency resources; The second threshold and the number of times the terminal device continuously loses synchronization on the plurality of frequency resources within the first duration are used to determine whether an RLF occurs on the plurality of frequency resources. The apparatus according to claim 89, wherein, The first determination condition is related to one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources; The number of reference signals associated with the multiple frequency resources; Features of service data transmitted on at least one of the plurality of frequency resources; The number of frequency resources currently available; The terminal device uses the access technology on at least one of the plurality of frequency resources. The apparatus according to claim 89 or 90, wherein, The number of the first determination conditions is one or more; When there are multiple first determination conditions, a second determination condition among the multiple first determination conditions is used to determine whether the multiple frequency resources have experienced an RLF; the second determination condition is indicated by the first information sent by the device, and/or determined based on the second information sent by the device. The apparatus according to claim 91, wherein, The first information includes the identifier of the second determination condition; The second information includes one or more of the following: The frequency range corresponding to each of the first determination conditions; The number or range of reference signals corresponding to each of the first determination conditions; The characteristics of the business data corresponding to each of the first determination conditions; The number or range of available frequency resources corresponding to each of the first determination conditions; The access technology corresponding to each of the first determination conditions; The identifier of the second determination condition. The apparatus according to claim 91 or 92, wherein, The second determination condition satisfies one or more of the following: The frequency range corresponding to at least one of the plurality of frequency resources is included within the frequency range corresponding to the second determination condition. The number of reference signals associated with the multiple frequency resources is the same as the number of reference signals corresponding to the second determination condition, or falls within the range of the number of reference signals corresponding to the second determination condition. The characteristics of the service data corresponding to the second determination condition include the characteristics of the service data transmitted on at least one of the plurality of frequency resources; The number of currently available frequency resources is the same as the number of available frequency resources corresponding to the second determination condition, or falls within the range of the number of available frequency resources corresponding to the second determination condition; The access technology corresponding to the second determination condition includes the access technology used by the terminal device on at least one of the plurality of frequency resources. The apparatus according to any one of claims 88 to 93, wherein the second communication unit is further configured to: The terminal device receives third information, which is transmitted through a second frequency resource and is used to indicate that an RLF has occurred on the plurality of frequency resources; wherein, no RLF has occurred on the second frequency resource. The apparatus according to claim 94, wherein, The multiple frequency resources belong to the first frequency resource group, and the second frequency resource belongs to the second frequency resource group. The apparatus according to claim 94 or 95, wherein, The third information is carried via RRC signaling or MAC CE. The apparatus according to any one of claims 88 to 93, wherein the second communication unit is further configured to: The device receives a fourth message from the terminal device, the fourth message being used to trigger the reconstruction of the RRC connection between the terminal device and the device. The apparatus according to claims 84, 85, 94 to 96, wherein, The second frequency resource is: The terminal device has been configured with any frequency resource that has not experienced an RLF; or, A specific frequency resource from the frequency resources already configured in the terminal device; or... The terminal device has been configured with frequency resources whose signal quality meets specific conditions. The apparatus according to any one of claims 76 to 98, wherein, The multiple frequency resources are located within a continuous frequency band, or the network devices associated with the multiple frequency resources are co-located. The apparatus according to any one of claims 76 to 99, wherein, The frequency resource is the bandwidth portion (BWP). A communication device, the communication device comprising: Memory, used to store computer programs; A processor, connected to the memory, is configured to call and run the computer program from the memory to implement the method as described in any one of claims 1 to 25, or the method as described in any one of claims 26 to 50; A transceiver is used to receive and send information when exchanging information with other devices. A chip, the chip comprising: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as claimed in any one of claims 1 to 25, or the method as claimed in any one of claims 26 to 50; A transceiver is used to receive and send information during the exchange of information with a device or chip. A non-volatile computer-readable storage medium for storing a computer program that causes a computer to perform the method as claimed in any one of claims 1 to 25, or the method as claimed in any one of claims 26 to 50.